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MASC101: Past Midterms Study Guide 2022

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What percentage of the Earth's surface is covered by the oceans?

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Terms in this set (118)

What percentage of the Earth's surface is covered by the oceans?

What is the average depth of the oceans?

What is the average thickness of the atmosphere?

Nitrogen accounts for A percent of gasses in the atmosphere and oxygen accounts for B percent.

What is the present-day concentration of carbon dioxide (CO2) in the atmosphere?

The concentration of CO2 was ______ prior to the industrial revolution.

We use latitude and longitude to determine position on Earth. What is another name given to a latitude of 0 degrees?

What is another name given to a longitude of 0 degrees?

Vertical exaggeration in displays of ocean data is?

Makes vertical changes appear steeper than they actually are

Express 1,000,000 in scientific notation.

Early Earth, soon after formation, was

hot with a molten surface

Approximately how long ago did life first begin on Earth?

3.6 billion years

Were the first forms of life chemosynthetic or photosynthetic

Referring to question 14, which form of -synthesis produces oxygen (O2)?

Approximately how long ago was the peak of the last glacial maximum?

15,000-20,000 years