8th Grade Review #1 (2nd)

What gas makes up 21% of our atmosphere?

• Oxygen
• Hydrogen
• Nitrogen
• Carbon Dioxide
• Sulfur Dioxide

Which of the atmospheric layer that we live in?

• Troposphere
• Stratosphere
• Mesosphere
• Thermosphere
• Exosphere

What Effect causes the Earth to heat up

• Redhouse

• Greenhouse

• Bluehouse

• Yellowhouse

Convection is the process by which heat or electricity is directly transmitted through a substance.

• TRUE
• FALSE

Air always moves from areas of High Pressure to areas of Low Pressure.

• TRUE
• FALSE

What type of climate do we live in?

• Polar
• Tropical
• Dry
• Mild
• Continental

What percentage of the world's water supply is frozen in glaciers?

• 2%
• 95%
• 8%
• 50%
• 97%

Which one of these is the largest world ocean?

• Arctic

• Indian
• Atlantic
• Southern
• Pacific

"Cohesion" refers to the tendency of water molecules to stick to other substances.

• TRUE
• FALSE

Which of these is NOT one of the 4 climate zones?

• Tropical
• Temperate
• Subtropical
• Polar
• Mediterranean