Can someone check my answers?
1. The 1930s Dust Bowl in the Great Plains was caused by (1 point)
using renewable resources.
poor farming practices. <- my answer
2. When farming, overgrazing, climate change, and/or seasonal drought change farmland into land that cannot support plant life, it is called (1 point)
desertification. <- my answer
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Which statement below is NOT true? (1 point)
Deforestation makes soil vulnerable to drying out.
Deforestation results in loss of roots that stabilize soil.
Deforestation prevents desertification. <- my answer
Deforestation decreases biodiversity.
Of the following, which is the most likely consequence of a manufacturing plant dumping its chemical waste into a nearby stream? (1 point)
increased oxygen levels in the water
decreased flow rate of the stream
loss of a keystone species
an algal bloom <- my answer
Of the following, which is most likely to result after a farmer sprays his crops with pesticides? (1 point)
The crops die.
The insect population increases.
The soil dries up and blows away.
A neighbor’s well tests positive for pesticides. <- my answer
The sulfur and nitrogen compounds in smog combine with water to form (1 point)
acid rain. <- my answer
Carbon dioxide is a colorless, odorless gas. Why is it considered a pollutant? (1 point)
It gets into natural waters and kills fish.
It promotes algal growth in natural waters.
It causes respiratory illness in humans.
It increases the warming of the atmosphere. <- my answer
9. Biodiversity is valuable partly because it (1 point)
gives us interesting things to look at.
tells us about many other species.
contributes to medicine and agriculture. <- my answer
provides humans with resistance to disease.