What gas is released in the process of smelting?

A. Carbon monoxide
B. Carbon dioxide
C. Sulfur dioxide
D. Chlorine
E. Ammonia


Answer: C

Environmental & Atmospheric Sciences

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A playa forms by ____________________ of a playa lake. Fill in the blank(s) with the appropriate word(s)

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Scientists know that the outer core of the Earth is liquid because S waves have not survived travel through the Earth's interior

Indicate whether the statement is true or false

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Given the following components:(1) lions and zebras(2) carbon dioxide and oxygen(3) grass(5) decomposers(6) the sun(7) nutrients(8) soil, air, and waterWhich are needed to have a functioning ecosystem?

A. All of them. B. Only 2, 3, 7, and 8 C. Only 1, 3, 5, and 7. D. All but 2.

Environmental & Atmospheric Sciences

Which of the following is NOT an erosional feature formed by an alpine glacier?

A) Cirque B) Col C) Horn D) Drumlin

Environmental & Atmospheric Sciences