Answer:
We should be concerned because it affects the air we breath, and the climate of our planet. With the increased amount of gases, heat is increasing, making glaciers melt, and tempertures rise more and more each year.
hope this helps :)
Explanation:
To produce energy for the body
a plant community of drought-adapted shrubs, usually found in rocky and rapidly drained shallow soils. Dense vegetation consisting of stunted trees or bushes.