________ is a naturally occurring substance that is potentially toxic to people

A) Carbon dioxide
B) Radon
C) DDE
D) PCB
E) Bisphenol A (BPA)


Answer: B

Environmental & Atmospheric Sciences

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Most natural resources are non-renewable. What does this mean?

Environmental & Atmospheric Sciences

Ocean crust is denser than continental crust because ocean crust is ________

A) composed primarily of granite B) thicker than continental crust C) thinner than continental crust D) composed primarily of basalt

Environmental & Atmospheric Sciences

The development of the _______ egg made possible the development of reptiles from

amphibians. Fill in the blank(s) with the appropriate word(s).

Environmental & Atmospheric Sciences

Most of the energy used worldwide comes from renewable energy sources.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences