Answer;
C. Poor farming techniques that killed the soil were combined with drought.
Explanation;
-The Dust Bowl was caused by several economic and agricultural factors, including federal land policies, changes in regional weather, farm economics and other cultural factors.
-After the Civil War, a series of federal land acts coaxed pioneers westward by incentivizing farming in the Great Plains.
Hello,
An increase in pollution [could] lead to a decrease in <span>genetic variation in a population of tuna.
Faith xoxo</span>
I'm gonna go and say it's parenchyma but I'm not 100% sure
Enzymes bind with chemical reactants called substrates
Answer:
It means the entire variability among living organisms. From marine and terrestrial life forms, it also means that each types of these ecosystems hold large diverse species that have even their own subspecies.