What are the two elements that give ocean water its “saltiness”?

A. sodium and oxygen
B. oxygen and nitrogen
C. nitrogen and chlorine
D. sodium and nitrogen
E. chlorine and sodium


E

Environmental & Atmospheric Sciences

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Snow insulates the ground well because: a. the air between the individual snowflakes allows shortwave radiation to penetrate the snow and warm the ground

b. the air between the individual snowflakes is a good insulator. c. ice is a better insulator than air. d. All of these choices.

Environmental & Atmospheric Sciences

The evolutionary trend in mammal size during the Pleistocene could have been in response to:

a. global warming when there was more food available. b. cooler temperatures because large animals retain heat more efficiently. c. protection from predation of other organisms. d. increased predatory ability. e. decreased metabolic requirements

Environmental & Atmospheric Sciences

What are the three categories of UV radiation? Which of these are considered to be biologically harmful?

What will be an ideal response?

Environmental & Atmospheric Sciences

The Kara Kum desert lies within:

A) Afghanistan B) Turkmenistan C) Kazakhstan D) Kyrgyzstan

Environmental & Atmospheric Sciences