Science test

Question 1

Are usable materials that man can obtain from the physical world.

Answer 1

Natural resources

Question 2

These provide food

Answer 2

Consumers

Question 3

These trap energy from the sun and convert the energy into food.

Answer 3

Producers

Question 4

are important for removing and recycling wastes.

Answer 4

Decomposers

Question 5

________ is the science of growing crops and livestock

Answer 5

Agriculture

Question 6

Steller’s sea cow, Great auk, carolina parakeet, are all

Answer 6

extinct

Question 7

Most farmers practice ________ ______ to keep their soil in good condition

Answer 7

Crop rotation

Question 8

The ___________ is the rate at which new individuals are born into a population

Answer 8

Birthrate

Question 9

The _______ ______ is the rate at which individuals die and are no longer part of a population

Answer 9

death rate

Question 10

____________ _________ living things that people raise primarily for their own use

Answer 10

Domesticated organisms

Question 11

____________ _________ resources that are able to be replaced

Answer 11

Renewable resources

Question 12

___________ __________ resources that are unable to be replaced

Answer 12

Nonrenewable resources

Question 13

Methods of replenishing the soil

Answer 13

Using fertilizers, Planting legumes, Practicing crop rotation, Practicing no-till agriculture, Planting ground cover.

Question 14

The movement of people into an area

Answer 14

Immigration

Question 15

movement of people out of an area

Answer 15

Emigration

Question 16

______ ______ an energy source derived from the fossilized remains of plants and animals

Answer 16

Fossil fuel

Question 17

The addition of impurities to an ecosystem, such as energy pollutants and substance pollutants

Answer 17

Pollution

Question 18

_________________ _________ can be broken down by the environment

Answer 18

Biodegradable

Question 19

______________ ________ cannot be broken down by the environment

Answer 19

Nonbiodegradale pollutants

Question 20

_________ ________ chemicals that can harm living things

Answer 20

hazardous substances

Question 21

_______ ______ one of the most abundant air pollutants

Answer 21

Carbon monixid

Question 22

This is a combination of smoke automobile exhaust and fog

Answer 22

smog

Question 23

Recycle means to

Answer 23

use again

Question 24

Solid waste materials are

Answer 24

sanitary landfills and recycling

Question 25

A population reaches its _______ ________ when limiting factors prevent further growth

Answer 25

carrying capacity

Question 26

This is the killing of unborn babies

Answer 26

abortion

Question 27

this is the killing of old or very sick

Answer 27

euthanasia

Question 28

__________ is the preservation and wise use of natural resources.

Answer 28

Conservation

Question 29

Sewage paper and wood are all examples of

Answer 29

Biodegradable pollutants

Question 30

Plastic glass and many different chemicals are examples of

Answer 30

Nonbiodegradable pollutants

Question 31

_______ is the preservation and wise use of natural resources

Answer 31

conservation