Answer:
Sample 4.
Explanation:
Oxygen is very important for life, so this should be present.
The answer is <span>insect and pest populations decreased.
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DDT (dichlorodiphenyltrichloroethane) was used as an insecticide which is a substance used to kill insects. That resulted in decrease in insect and pest populations. It is a persistent and non-degradable insecticide, but as well organic pollutant readily accumulated to soils and consequently affects organisms.
Answer:
The answer is they passed the Jim Crow Laws, D
I’m pretty sure it’s to do with studying history and geography, I know that scientists also use it to study the earths magnetic field
Could I have a Brainly please?!
