How much of the water on Earth is found in the ocean?

a. 3%
b. 67%
c. 71%
d. 90%
e. 97%


e

Environmental & Atmospheric Sciences

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The element silicon has a melting point of 1,410°C and a boiling point of 2,355°C. It is a weak conductor of electricity, its density is 2.3 grams per cubic centimeter and it easily forms silicon dioxide when exposed to air

Which of the following is a chemical property of silicon? A) its ability to conduct electricity B) its density C) its melting point D) its ability to react with oxygen E) C and D

Environmental & Atmospheric Sciences

Most scientists believe that the Big Bang took place approximately ____ years ago

A)140 billion B)40 billion C)14 billion D)140 million E)40 million

Environmental & Atmospheric Sciences

The San Andreas Fault is a(n) ________ boundary

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences

Match the term with the correct description.?

A. ?forged an agreement among Canadian timber companies, environmentalists, native peoples, and the provincial government of British Columbia (Canada) to protect Great Bear Rainforest from destructive logging B. ?an environmental impact statement (EIS) must be developed C. ?Gaylord Nelson and Denis Hayes D. ?protected whales from hunting E. ?prohibits international trade of endangered species

Environmental & Atmospheric Sciences