A disadvantage of social behaviour is that you are very dependent on others opinions and support and you don’t always say the full truth
Answer:
Oil is the world's primary fuel source for transportation
Explanation:
Fossil fuels mainly coal, Oil and natural gas are the world's primary energy source. Fossil fuels formed from Organic matter over millions of years.
Oil is a source of transportation and it is obtained from the underground reservoirs. Then the crude oil is refined to obtain fuel oil, liquid petroleum, gasoline etc. Crude oil also used to make other products such as pesticides,fertilizers etc
Coal is used to generate electricity. Around 30% of the power supply in United states mainly due to coal. China is world's largest producer of coal and supplied to all over the World.
Natural gas also used to generate electricity, commonly used in buildings and industries.
Answer:
Sexual reproduction is a process where two organisms create an offspring. It requires two parents, a sperm and an egg. Inherited traits can increase an organism's survival by having good traits such as survival skills like eating, walking etc.. It can decrease because some inherited traits might be diseases.
Explanation:
Chlorofluorocarbons (CFCs) are nontoxic, nonflammable chemicals containing atoms of carbon, chlorine, and fluorine. They are used in the manufacture of aerosol sprays, blowing agents for foams and packing materials, as solvents, and as refrigerants.<span>Man-made compounds such as chlorofluorocarbons (CFCs), hydrofluorocarbons (HCFCs) and halons destroy ozone in the upper atmosphere (stratosphere). The stratospheric ozone layer makes life possible by shielding the earth from harmful ultraviolet (UV-B) rays generated from the sun. Decreased concentration of stratospheric ozone allows increased amounts of UV-B to reach the earth's surface.</span>
