Question

NEED ANSWER ASAP Which statement about the earth’s atmosphere is true

In the past few decades, carbon dioxide levels have been rising.


A recent decrease in carbon dioxide levels will increase plant growth on Earth.


In the past few decades, carbon dioxide levels have been falling.


A recent increase in carbon dioxide levels can contribute to a long-term cooling of Earth’s climate.

Answer 1

In the past few decades, Carbon dioxide levels has been rising.

Step-by-step explanation:

• Rising levels of Carbon dioxide has become an immediate concern for the Environmentalists.
• This is because carbon dioxide is a green house gas and risen levels of green house gases can lead to unusual warming up of the Earth's Atmosphere.
• This phenomenon is termed as Global warming.
• Global warming can lead to seasonal variation and melting of the ice caps to flood several continents.
• In Last few decades The levels of Carbon dioxide is rising at an alarming rate.
• This rise occurs due to the to burning of fossil fuels, combustion of fuels in automobiles, Deforestation etc
• An immediate step is needed to check this addition of carbon dioxide.