Deck 4

Question 1

What are some ways that farmer impact ecosystems?

Answer 1

They clear land, use pesticides and herbicides, add water to irrigate their crops, and they add fertilizer

Question 2

What are some ways the farmers and ranchers have changed their practices to be more friendly to the environment?

Answer 2

many crops are planted along contours of land to prevent soil erosion and crops are rotated every year

Question 3

What are some ways that industry impacts ecosystems?

Answer 3

They put chemicals in the air, use up resources (water), and automobiles add pollutants to the air

Question 4

What are some ways the people can minimize their impact on nature?

Answer 4

we can take care of God’s creation and not let pollution and chemicals out-of-control in our world

Question 5

Name 2 possible natural causes of extinction of a species.

Answer 5

habitat reduction and non-native different species to move into other animals’ area

Question 6

name 3 possible man-made causes of extinction of a species.

Answer 6

over hunting, pollution, and exploitation

Question 7

name 3 things people are doing to help endangered species

Answer 7

introducing animals into areas where they once lived, captive breeding, and the government passed laws to stop pollution

Question 8

Why might people overhunt a particular animal?

Answer 8

B/c the parts of the animals can serve as resources for people (elephant’s tusks)

Question 9

Can people use the land without harming endangered species?

Answer 9

yes…they don’t have to force them out or overhunt but they can all live in peace

Question 10

What is pollution?

Answer 10

the presence of any contaminant that harms the ecosystem

Question 11

What are some natural sources of pollution?

Answer 11

sandstorm, erupting volcano, wildfires, cow fart

Question 12

What are some sources of man-made pollution?

Answer 12

activities of people, power plants, factories, automobiles, fireplaces, controlled burns, trash

Question 13

What are 3 major areas of the environment that can become polluted?

Answer 13

water, air, and land pollution

Question 14

What are some ways that people can reduce water pollution?

Answer 14

The don’t have to dump sewage into the water and they can control the amount of chemicals used

Question 15

What are some ways that people can reduce air pollution?

Answer 15

They can make sure that the cars and air conditioners are safe

Question 16

What are some ways that people can reduce land pollution?

Answer 16

They don’t need to add chemicals to the fertalizers

Question 17

Do you think that water, air, and land are cleaner or dirtier today than they were 40 years ago?

Answer 17

Dirtier…b/c there are many more cars and factories and many more chemicals that people have come up with over the years that are being let out into the water, air, and land today.

Question 18

Why is rain naturally slightly acidic?

Answer 18

Because when water in the atmosphere combines with some carbon dioxide it turns acidic

Question 19

What is acid rain?

Answer 19

Rain that has a higher than normal acid level

Question 20

What are the main causes of an acid?

Answer 20

When fossil fuels are burned, they release chemicals into the air

Question 21

What is buffering capacity?

Answer 21

the ability of the soil to neutralize acid

Question 22

What are some ways to help reduce acid rain?

Answer 22

you can limit the amount of sulfur dioxide and nitrogen oxides that plants release into the air.

Question 23

If the buffering capacity were the same, would you expect acid rain to be more of a problem or less of a problem in areas with high population densities? Why?

Answer 23

more of a problem because the more dense something is, the less rain can be absorbed

Question 24

What is the greenhouse effect?

Answer 24

the trapping of solar energy

Question 25

Why is the greenhouse effect important on Earth?

Answer 25

Because without it, the average temp on Earth would be about -100 degrees F

Question 26

What is global warming?

Answer 26

an increase in the average surface temp of the earth

Question 27

What do many scientists claim are the two main causes of global warming?

Answer 27

deforestation and burning fossil fuels (increase of carbon dioxide)

Question 28

What some ways that people might reduce the amount of carbon dioxide they are putting into the atmosphere?

Answer 28

they can conserve gas in their cars from going into the air not cutting down so many trees

Question 29

What are the three Rs of conservation?

Answer 29

Reduce, reuse, and recycle

Question 30

List 2 ways you can plan to do all of these things (recycle, reuse, reduce)

Answer 30

I can make sure that I clean up after myself and make sure that I don’t waste anything

Question 31

What are polymers?

Answer 31

long chains of oil molecules

Question 32

What is recycled resin?

Answer 32

the plastic strands that are chopped into uniform pellets

Question 33

What is virgin resin?

Answer 33

plastic pellets that are made directly from oil

Question 34

What is photodegradable?

Answer 34

other plastics that are broken down when exposed to sunlight