Huge circular depressions from which volcanoes erupt are called

A) calderas.
B) fissures.
C) cones.


A) calderas.

Environmental & Atmospheric Sciences

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Which nation in Latin America remains the top producer of cocaine?

A) Peru B) Argentina C) Chile D) Colombia E) Brazil

Environmental & Atmospheric Sciences

The___ of the Earth has the smallest volume.

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

Environmental & Atmospheric Sciences

Which of the following is not an example of an age-relationship based on absolute dating?

A) The oldest known rocks on Earth are 3.96 billion years old. B) The Vishnu schist at the bottom of the Grand Canyon is 2 billion years old. C) The dinosaurs became extinct 65 million years ago. D) The Coconino formation in the Grand Canyon is older than the Kaibab formation.

Environmental & Atmospheric Sciences

The various processes by which rocks at or near Earth's surface are disintegrated or decomposed are collectively known as _______________

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences