Question: Choose your answer.

Which would provide evidence of seafloor spreading?

OPTIONS:
- higher levels of salinity in the ocean water
- stronger currents at the surface of the ocean
- cooled magma found on the edge of the plates
- greater reproduction levels for organisms at the bottom of the ocean
My Answer: cooled magma found on the edge of the plates

Question: Choose your answer.

In addition to oxygen, which gases make up the largest percentage of Earth's atmosphere?

OPTIONS:
- hydrogen, helium, and water vapor
- hydrogen, methane, and ozone
- carbon dioxide, water vapor, and nitrogen
- carbon dioxide, methane, and helium
My Answer: carbon dioxide, water vapor, and nitrogen

Question: Choose your answer.

Some areas of the world are experiencing more desert-like conditions. This change most favors survival of species with the ability to do which of the following?

OPTIONS:
- consume large amounts of food
- become dormant for long periods
- sense infrared and ultraviolet light
- transpire water through the skin to the atmosphere
My Answer: become dormant for long periods

Question: Choose your answer.

Which two systems of the body are interacting when a runner sprains his ankle?

OPTIONS:
- the nervous system and the digestive system
- the digestive system and the circulatory system
- the respiratory system and the nervous system
- the muscular system and the nervous system
My Answer:
the muscular system and the nervous system