What chemical is responsible for depleting the Earth's ozone at a rapid rate?

A) DDT
B) PCBs
C) CFCs
D) Carbon dioxide


C

Environmental & Atmospheric Sciences

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Globally, where would you be most likely to find type D and type E climates?

A. D near 60 degrees latitude, E near poles B. D and E near 60 degrees latitude C. D and E near poles D. D near poles, E near 60 degrees latitude

Environmental & Atmospheric Sciences

What is the definition of magma mixing?

A) When magma mixes with fluids to become more dilute B) When rising magma melts surrounding country rock and incorporates it C) When one rising magma will overtake a second and the two intermix D) When magma incorporates more dissolved gases

Environmental & Atmospheric Sciences

The changing distance between the earth and the sun over the course of the year is the main cause

of the seasons. Indicate whether the statement is true or false.

Environmental & Atmospheric Sciences

Which of the following ions can pass through the open channel of the acetylcholine receptor?

A) K+ B) Na+ C) both a and b D) neither a nor b

Environmental & Atmospheric Sciences