QUESTIONS

1. What is the most common greenhouse gas emmited from human activities?
R: The carbon, Methane and Nitrogen.

2. Do you think greenhouse gases in the atmosphere are always bad for humans and the environment?
R: No, because they serve to keep the heat so as it isn´t cold the planet.

3. In which of the following ways do people increase the concentration of the greenhouse gases in the atmosphere, and why?
a) Cutting down trees.
b) Driving gasoline-powered automobiles.
c) Burning coat to create electricity.
d) All of the above.
R: Because the trees clean the air of carbon, the cars are the principal pollutants of air as than the burning produces carbon and this big pollutant.

4. Why greenhouse gases cause global warming and explain it.
a) Absorbing and reradiating heat from infrared rays.
b) Causing the atmosphere to catch fire.
c) Absorbing the water in the atmosphere.
d) Reflecting solar rays.
R: Because the clouds don´t reflect the sun light and the atmosphere retains it due to the thick layer formed by pollutants.