The world population is estimated to grow to what size by 2050?

A) over 2 trillion
B) 7.4 billion
C) 9.8 billion
D) 200 billion
E) 700 million


C) 9.8 billion

Environmental & Atmospheric Sciences

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About half of all U.S. foreign trade is carried through the Panama Canal

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

The average albedo of Earth's surface is about ________

A) 3% B) 30% C) 50% D) 67% E) 90%

Environmental & Atmospheric Sciences

The breakdown of large rocks into smaller pieces is ________

A) primarily caused by topsoil erosion B) unaffected by winds C) called mineralization D) affected by rainfall, freezing, and thawing E) a major cause of topsoil erosion

Environmental & Atmospheric Sciences

Ideally, science

A. Always has the right answers B. Uses new technology C. Is orderly and methodical D. Tells us what we expected to find E. Proves that our hypotheses are correct

Environmental & Atmospheric Sciences