NATURAL SCIENCE

Understanding Waste and Pollution

Understanding Waste or Trash
Waste or garbage is waste or dirt resulting from the disposal of waste or chemicals from factories. Waste or garbage is also a material that is not meaningless and worthless, but we did not know that the waste could also be something that is useful and beneficial if properly processed. Waste or garbage can also mean something that is useless and discarded by most people, they think of it as something that is not useful, and if left too long, it will cause disease when the waste properly then it could make junk a thing economically.

 Understanding Pollution  v
Pollution is a gas that can harm originating or fumes generated by either exhaust from vehicles and combustion fumes from certain factories. Rarely do we find a state of the streets are clean without any pollution from vehicle fumes. Pollution can also cause disease, because it is contained in the pollution disease viruses that can harm our health. Many people are complaining because of the pollution, even today there is no effective way to deal with pollution, as more and more people today are driving a vehicle that makbanyak also berotor fumes generated and it will cause air pollution.

NATURAL SCIENCE

Definition and Types of Recycling Biogeochemistry

Biogeochemistry is a change or exchange that occurs continuously between the non-living components of the biosphere with the living.
In ecosystems, matter at each trophic level is not lost. The material in the form of constituent elements for organic material is recycled, which elements are included in the biotic kompoenen because air, water and soil. Recycling these materials also called Recycling Biogeochemistry, this is because the change involves some creatures and rocks (geophysical).
Function Cycle Biogeochemistry
Changes or recycled elements are known as the Recycling Biogeochemistry has a role and an important function in maintaining the survival of the earth, it is karenakan all materials recycled beogeokimia results can be used by all that is on earth, including the biotic components or abiotic components.
Function Cycle Biogeochemistry
The function of the biogeochemical cycle is to maintain continuity hidip earth, because the material is the result of the biogeochemical cycle can be used by all components of the earth such as abiotic and biotic.

NATURAL SCIENCE

Human interaction is a complex and diverse constituent. On earth there are a variety of ecosystems.

1. Ecosystem Structure
Judging from the composition and function, an ecosystem made up of the following components.
a. Component autotrof
(Auto = self and trophikos = provides meals).
Autotrophs are organisms that are able to provide / synthesize their own food in the form of organic matter from inorganic materials with the help of energy such as solar and chemical. Autotrof component serves as producer, for example, green plants.
b. Heterotrophic components
(Heteros = different, trophikos = food).
Heterotroph is an organism that utilizes organic materials such as food and material supplied by other organisms. Heterotrophs are classified as humans, animals, fungi, and microbes.
c. Materials nonliving (abiotic)
Nonliving material that is the physical and chemical components consisting of soil, water, air, sunlight. Nonliving material is medium or substrate where the continuity of life, or living environment.
d. Decomposers (decomposers)

NATURAL SCIENCE

GAS WASTE HANDLING AND B3

B3 waste
According to the PP. 18 of 1999, is a B3 waste is the residue of a business and or activities that contain hazardous or toxic and because of the nature and amount or concentration and or, directly or indirectly, can pollute and corrupt the environment or endanger life and or environment, health, human survival and other living things.
B3 treatment goal is to prevent and control pollution or environmental damage caused by waste B3 and the restoration of environmental quality that has been contaminated so according to function again.
              From this it is clear that any activity / activities related to B3, both producing, collecting, transporting, utilizing, treating and landfilling B3, should pay attention to aspects of the environment and maintain the quality of the environment remains in its original state. And in the event of pollution caused by spilled, runoff and seepage B3 waste, efforts should be made so that optimal environmental quality back to the original function. B3 waste handling and processing activities include the collection, transportation, use, processing and stockpiling.

CHEMICAL

UNDERSTANDING MATERIALS

MATTER is anything that has mass and occupies space.
While the mass is a measure of the amount, the value is not influenced by
gravity so that the mass of the same everywhere.
properties of matter
influence form type volume
sample pressure
Gas followed suit rooms large volumes of air space
Liquid without certain specific forms of water, besin
Certain specific solid zero salt, sugar

CHEMICAL

Coat element

Each of the elements will definitely be an emblem in accordance with the international rules of writing. The following are the rules of writing in an element.
a. For symbol element consists of only one letter, writing that
use capital letters.
Examples such as:
• Carbon denoted C.
• Hydrogen element denoted H.
• Oxygen Elements denoted 0.
b. For the element symbol consisting of two letters, the first letter writing
use a capital letter and the second letter by using small letters.
Examples such as:
• Sodium element denoted Na.
• Calcium element denoted Ca.
Here are a symbol of the metal and non-metallic elements
Metal Elements non-metals
Element Name Element Name Symbol Symbol i
Aluminium Al Argon Ar
As Arsenic Antimony Sb
Barium Ba Sulfur S
Fe Iron Boron B
Bi Bismuth Bromine Br
Gold Au Fluorine F
Phosphorus P Potassium K
Calcium Ca Helium He
Cobalt Co Hydrogen H
Cr Chromium Iodine 1
Mn Manganese Carbon C
Magnesium Mg Chlorine CI
Sodium Na Neon Ne
Nickel Ni Nitrogen N
Ag Silver Oxygen 0
Mercury Hg Silicon Si
Zinc Zn Krypton Kr
Copper Cu Xenon X
Tin Sn Se Selenium
Lead Pb Radon Rn
Periodic table of elements

CHEMICAL

Mol Concepts

a) Definition of Mol
o A mole is the amount of a substance that contains the number of particles = number of atoms contained in 12 grams of C-12.
o mole is a unit number (eg dozen, gross), but its size is much larger.
o Mol linking mass by the number of particles of matter.
o The number of particles in one mole (in 12 grams of C-12) are determined through a variety of experimental methods and now we receive is 6.02 x 10 23 (called the Avogadro constant, denoted by L).
Example:
1 mole of water that is to say: so grams of water containing 6.02 x 10 23 molecules of water.
1 mole of iron means: iron-containing gram so 6.02 x 10 23 atoms of iron.
1 mole of sulfuric acid means: so grams of sulfuric acid containing 6.02 x 10 23 molecules of H 2 SO 4.
1 mole = 6.02 x 10 23 particles
L = 6.02 x 10 23
b) Relationship with the Number of Particles Mol
Description:
n = number of moles
 = Number of particles
c) Molar Mass (m m)
o Mass Molar mass of one mole of a substance expressed.
o units are g mol -1.
o Molar mass of substances associated with Ar or Mr substance that, because of Ar or Mr substance is the ratio between the mass of the particles of matter with atom C-12.
Example:
Zar Fe = 56, mean: 1 atom Fe mass: the mass of 1 atom C-12 = 56: 12
Mr H 2 O = 18, mean: mass of 1 molecule of water: the mass of 1 atom C-12 = 18: 12

KKPI

Understanding the OSI Layer

The Open Systems Interconnection (OSI) was created by the International Organization for Standardization (ISO) which provides a framework of structured logic how the process interacts with the data communication network. Standard was developed for the computer industry to communicate on different networks efficiently.

There are seven layers of the OSI model. Each layer is responsible for a particular aspect of data communications. For example, one layer is responsible for establishing connections between devices, while the other layer is responsible for correcting the "error" during the process of data transfer.

The layers of the OSI model are divided into two groups: "upper layer" and "lower layer". "Upper Layer" focus on the user and how the application represented in the computer file. For Network Engineer, the main part of the focus is on "lower layer". Lower layer

is the essence of actual data communication through the network.

KKPI

Network topology is a way to connect computers to each other to form a network computer. In a computer network topology of the selected type will affect the speed of communication.

1. STAR Topology

Characteristics of Star Topology

1. Each node communicates directly with each node communicates directly with the concentrator (HUB) concentrator (HUB).

2. If each packet of data that goes into each data packet When coming into consentrator (HUB) then broadcast throughout very much connected nodes (eg using 32 port hub), performance (eg using 32 port hub), then the performance of the network will be more dropped. network will be down.

3. Very easy to develop

4. If one ethernet card is broken, or one of the wires on the terminal end, the network can still keseluruhhan keseluruhhan network can still communicate or do not occur down to communicate or not happening down on the overall network. the overall network.

5. Type of cable used is usually the type of UTP.

CHEMICAL

Conversion of units
For the record that is easy to remember, the following is a common unit of measure can be converted to a variety of daily necessities are arranged in order from largest to smallest:

km = Kilo Meter
hm = hecto Meter
dam = Deka Meter
m = Meter
dm = Desi Meter
cm = centimeter
mm = Mili Meter

A. Convert Units of Measure Length
For unit conversion length of a degree to be a lower level is multiplied by 10, while for the conversion of the upper level divided by the number 10. Example:

PHYSICS

 MOMENTUM AND IMPULSE

Momentum and Impulse in the discussion of physics as a whole is due to momentum and impulse two magnitudes are equal. Two magnitudes as similar as when the momentum and impulse has units International System (SI) is the same or even the same dimensions as discussed in the magnitude dansatuan. Posting a little will discuss about the definition of momentum and impulse.


Understanding Momentum
Momentum is the product of mass and velocity. Mathematically it can be written as follows
  P = m.v
Information
• P = momentum (kg.m / s)
• M = mass (kg)
• V = velocity (m / s)

CHEMICAL

Law of Conservation of Energy

Law of conservation of energy states that energy can not be created or destroyed, but energy can be transformed from one form of energy into another form of energy. Example: solar light energy is converted into chemical energy in the form of carbohydrates. Carbohydrates are converted by humans or animals into heat energy back after digested, so the human body and animals keep warm.

1. System and Environment
The system is part of the universe to be studied, while everything outside the system is called the environment. Example: test tubes containing 5 mL of 0.1 M NaOH solution NaOH solution as the system while the test tube and the air around the tube is as environmentally.

2. Heat Reaction
Heat is the reaction of the system to move the heat to the environment or from the environment to the system so that the system temperature after a reaction similar to the system before the reaction temperature.

PHYSICS

 Definition of Magnitude
Magnitude is anything that can be measured or calculated, expressed with numbers and have a unit.
From this sense means that something can be said to be the amount that should have 3 terms
1. can be measured or calculated
2. can be expressed by numbers or has a value
3. has units
If even one of the above conditions are not met then that something can not be said to be massive.
The amount by way of acquiring can be grouped into two kinds:
1. Physics Magnitude is the amount obtained from the measurements. Because the measurements obtained from the measuring instrument should be. An example is the mass. The mass is due to physical quantities can be measured using a mass balance.
2. Magnitude scale non Physics is derived from the calculation. In this case the measure is not necessary but will be counted as such calculator tool. Sample size is the number of non-physical.
Magnitude Physics was divided into 2

CHEMICAL

This is one of my chemistry lesson class time XI, was sich a little difficult but fun especially teachers are very good. :)

Acid-Base

Acids and Bases are two classes of chemicals that are important in everyday life. In connection with the acid tongue, solutions are grouped into three categories, namely acidic, alkaline, and neutral. Acids and bases have different properties, so can we can determine the nature of a solution. To determine a solution is acidic or alkaline, there are a number of ways. The former uses a color indicator, which would indicate the nature of a solution with the color changes. Litmus example, is red in an acidic solution and is blue in alkaline solution. Acid-base properties of a solution can also be determined by measuring the pH. pHmerupakan a parameter used to express the acidity of the solution. Acid solution has a pH less than 7, alkaline solution having a pH greater than 7, while neutral solution has a pH = 7. pH of a solution can be determined with a pH indicator or a pH meter.

NATURAL SCIENCE

His relationship with the greening of global warming.

The sun's rays enter the earth that will be absorbed by existing plants. However, if the earth is not voting (or decreases) the forest or vegetation sunlight falling to earth will be reflected back to the sun through the atmosphere which over time will lead to the ozone layer being perforated (that's what is called the greenhouse effect) and without coating hence ozone sunlight d trima earth that will not be possible anymore in the filter until the earth receives full sun.
goal of greening itself is actually to reduce the greenhouse effect and ozone reduces the perforation. because just as that td gw blg that sunlight falling will d absorption by plants.
This is the same as we shined the flashlight into the mirror, perform automatic mirror will reflect light, right?
it is different if we tutp cerminya use fabric, the light from the lamp was not alters the reflected by the mirror. kira2 like that gambarannya.kalo greening is the completion of global warming. reply global warming adalahakibat lack of greening global warming is due to increased concentrations of carbon in the atmosphere .. and the green is a way of keeping the number of trees that serves to reduce the amount of carbon in the atmosphere

PHYSICS

Types of motion, GLB and uniformly accelerated motion

Motion is relative:
Benda said to move the reference point is considered stationary. For example, motorcycle moving at a speed of 30 m / s he is said to move the reference point such as a silent observer. Another example of the passengers on the bus was sitting in a chair while the bus moving at 50 m / s being silent observers on the edge of the road, in this case the passengers said the bus was silent on the edge of the road was said to be moving towards passengers with speed - 50 m / s.
Everyday problems associated with the relative motion:

PHYSICS

NEWTON LAW

Newton Law 1

Newton Law 1 reads: "The object at rest will keep the situation to remain stationary and moving objects will tend to maintain a straight uniform situation to move straight uniformly in the same direction as long as there are no forces acting on it".

Explanation 1 Newton law is as follows:
The nature of the object to maintain a stationary situation remained silent, moving straight to keep moving uniformly straight regular thing called inertia.

Newton's second law

CHEMICAL

hmm remember chemistry lesson in class X and XI .. maybe it helps if these days I divide up the material on the chemical bond ..

CHEMICAL BONDING
Chemical bonds in principle derived from the interaction between the electrons that exist in outer orbit, or partially filled orbit or orbit freely in the other atom.
1. The interaction of metal atoms (bond metallic / metal bonding).
 In the interaction between the metal atoms, chemical bonds formed by the attractive force-pulls electrons by the core (nucleus) are different. Originally owned by the atomic electrons are drawn by the neighbor-charged atomic nuclei +, and these electrons dg be shared equally by the gravity of other nuclei around it. Due to the low number of valence electrons and there is a large amount of space kososng, then e-has plenty of places to move. Such circumstances can lead to e-migrate freely between these cations. These electrons are called "delocalized electrons" and the bond is also called "delocalized bonding".

ENTREPRENEURSHIP

ANALYZING BUSINESS OPPORTUNITY
1. BUSINESS OPPORTUNITIES AND BUSINESS RISKS
Business Opportunities
If identified, many of sekalai profitable business opportunities. How to identify business opportunities or existing business can be searched, just asala entrepreneur's hard work, perseverance and believing in your own ability. Every entrepreneur actually has a chance to advance. To multiply and take advantage of business opportunities or business, an entrepreneur must think positively and creatively, including:
a. Have to trust and believe that the business or businesses can be implemented
b. Must accept new ideas in the world of business or business
c. Should ask themselves
d. Should listen to the advice of others
e. Must have a high work ethic
f. Good at communicating

NATURAL SCIENCE

 Sexually Transmitted Diseases

 Sexually transmitted diseases will be more at risk when having sex with multiple partners either through vaginal, oral and anal sex. STDs can cause reproductive infections should be taken seriously.
If not treated properly, the infection can spread and cause pain, prolonged pain, infertility and even death. Women are more at risk for STDs is greater than for men have more reproductive vulnerable. And often result in more severe because early symptoms are not immediately recognizable, while the disease continued to a more severe stage.
Because of the location and shape of a somewhat prominent penis, symptoms of STDs in men more easily recognized, seen, and felt. While the majority of women the symptoms.
1. The spots are filled with fluid, ulcers, or blisters on the area around the genitals.
2. Wound does not hurt, hard and red on the genital area.
3. The warts that grow like a chicken's comb
4. Very intense itching around the genitals.
5. Excruciating pain when urinating
6. Gonorrhea / blood with a foul odor.
7. Swelling heat pain in the groin that eventually become ulcers.
8. Losing weight drastically, prolonged diarrhea, and sweating at night.