science test

What are the sources of gaseous pollutants in the atmosphere as shown in the diagram?

• Industrial emissions, vehicle exhaust, and natural sources

• Only industrial emissions

• Only vehicle exhaust

• Only natural sources

Photochemical smog is air pollution that forms from the interaction between chemicals in the air and what?

What process is described by 'The sun heats the ground'?

• A) Conduction

• B) Convection

• C) Radiation

What process involves 'The ground warms the air and heats the lower atmosphere'?

• A) Radiation

• B) Conduction

• C) Convection

Fill in the blank: 'The warm air rises and cool gases sink' is a description of _________.

• Convection.

• Evaporation.

• Condensation.

• Radiation.

At higher altitudes (3,000ft+), what happens to the atmospheric pressure and boiling point of water?

• Atmospheric pressure increases and boiling point increases

• Atmospheric pressure decreases and boiling point decreases

• Atmospheric pressure increases and boiling point decreases

• Atmospheric pressure decreases and boiling point increases

Why must you bake cookies at a higher temperature at high altitudes?

• Because the air pressure is lower, causing liquids to evaporate faster.

• Because the air pressure is higher, causing liquids to evaporate slower.

• Because the air pressure is lower, causing liquids to evaporate slower.

• Because the air pressure is higher, causing liquids to evaporate faster.

Running at high altitudes decreases the amount of oxygen getting to your muscles.

• True

• False

The effects of higher altitude on dehydration and the body's sensation of thirst include:

• Increased dehydration and reduced sensation of thirst

• Decreased dehydration and increased sensation of thirst

• No change in dehydration and sensation of thirst

• Increased dehydration and increased sensation of thirst

What contributes to the pressure (weight) at a given altitude?