lesson 1 unit 2

Question 1

environment

Answer 1

which is all the conditions, circumstances, and influencers surrounding and impacting an organism.

Question 2

natural resources

Answer 2

those elements of nature that have value, such as timber, soil, fresh water, or a mineral deposit.

Question 3

pollutants

Answer 3

substances introduced into the environment that have harmful effects or that make a resource less useful.

Question 4

Environmental Protection Agency (EPA)

Answer 4

This agency encourages policy that benefits the environment and helps regulate businesses so that the pollutants they create do not overwhelm the environment.

Question 5

pesticides

Answer 5

chemicals designed to kill insects

Question 6

Erosion

Answer 6

Erosion is the wearing away of soil, usually due to either water or wind. Basically, when it rains, water runs into local lakes or rivers, carrying small amounts of soil with it and depositing it in the lake or river.

Question 7

United States

Answer 7

While a little soil picked up and carried away does not sound like a big deal, in the United States alone 1.6 billion tons of soil are worn away from 417 million acres of farmland.

Question 8

topsoil

Answer 8

the topsoil, the soil on the surface, is the richest and most fertile, this erosion means that one of agriculture’s most valuable assets is vanishing.

Question 9

herbicides

Answer 9

chemicals designed to kill certain plants, like weeds