Which of the following is the earliest (oldest) chapter of geologic time?

A. Mesozoic
B. Precambrian
C. Paleozoic
D. Cenozoic


Answer: B

Environmental & Atmospheric Sciences

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Nekton are animals and plants that float passively in the marine environment. Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Charge separation

A) results in the top of the cloud having a negative charge. B) most often occurs in clouds that are not precipitating. C) results in lightning only if the cloud extends above the freezing level. D) is not explained by the thermoelectric effect.

Environmental & Atmospheric Sciences

In 1802, the French naturalist ____________________ proposed the first system for classifying clouds

Fill in the blank with correct word.

Environmental & Atmospheric Sciences

For the following reaction, identify whether the compound in bold is behaving as an acid or a base.H3PO4 + H2O ?  H2PO4- + H3O+

A. acid B. base C. neither D. both E. none of the above

Environmental & Atmospheric Sciences