Unit 2 Review

Front

What happens to trade winds during an El Nino?

Back

Trade winds are typically weaker during an El Nino.

Front

How is nitrogen fixed into a usable form for plants?

Back

Nitrogen is fixed into a usable form for plants through the action of bacteria and lightning.

Front

What is precession in the context of Milankovitch Cycles?

Back

Precession refers to the change in the orientation of the rotational axis of the Earth.

Front

What do animals take in during respiration?

Back

Animals take in oxygen during respiration.

Front

What do animals release during respiration?

Back

Animals release carbon dioxide during respiration.

Front

What percentage of the Earth's water is freshwater?

Back

3% of the Earth's water is freshwater.

Front

What is the role of bacteria in the nitrogen cycle?

Back

Bacteria convert atmospheric nitrogen into a form that plants can use.

Front

What is the significance of lightning in the nitrogen cycle?

Back

Lightning helps to convert atmospheric nitrogen into nitrates that can be used by plants.

Front

What are the three main variables of the Milankovitch Cycles?

Back

The three main variables are eccentricity, obliquity, and precession.

Front

Define eccentricity in the context of Earth's orbit.

Back

Eccentricity refers to the shape of Earth's orbit around the Sun, ranging from circular to elliptical.