Science 909 lifepac test study guide

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3 possible solutions for the problem of waste:

1. produce less 2. throw away less 3. recycle more efficiently

nuclear fuels:

1. sun 2. wind 3. water

atomic fuels:

1. uranium 2. hydrogen

A new space endurance record was set by:

Salyut 6

TRUE/FALSE The surface area of the earth is mainly dry land.

false

The air is composed mainly of oxygen.

false

The world population growth rate has begun to decline.

false

geothermal

hot springs

BART is an example of a:

mass-transit system

Inner space refers to the oceans.

true

Man has walked on the moon but not on Mars.

true

The source of fuel for fission reactors:

uranium 235

3 parts of man's biosphere

1. air 2. land 3. water

3 types of energy sources

1. fossil fuels 2. nuclear 3. natural

Fossil fuels:

1. oil 2. coal 3. natural gas

Viking I and Viking II landed on:

Mars

Methyl-mercury is an example of:

a pesticide

fossil fuel

oil, natural gas, and coal

inner space

oceans

DDT is an example of:

pesticide

protein

prevents kwashiorkor

"Glassphalt" is an example of:

recycled product

radiation

released atomic energy

extinction

the death of a species

ecology

the relation of living things to their environment

desalinate

to take salt out of water

recycle

to use again

Fossil fuels are recovered by mining operations.

true

Fusion means to join together.

true

Major cause of air pollution in major cities:

cars

telemetry

communication

urbanization

condition of becoming a city

fission

divide


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