Which of the following would be evidence that a volcano has not been active for a long period of time?

A) A layer of ash blanketing hillslopes
B) Relatively unweathered lava flows
C) Well-developed soils on volcanic rocks


C) Well-developed soils on volcanic rocks

Environmental & Atmospheric Sciences

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The OAS

A) sought an end to colonialism and apartheid in Africa. B) promotes social, cultural, political, and economic links among member states in the Western Hemisphere. C) is a coalition of former British colonies. D) has played an active role in ending conflicts in the Balkans. E) promoted trade in the Soviet Bloc.

Environmental & Atmospheric Sciences

The oldest rocks on Earth are between 3.96 and 4.3 billion years old

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

The deadliest tornadoes are those that occur ____.?

a. ?over large distances b. ?over long periods of time c. ?in families d. ?in outbreaks e. ?in epidemics

Environmental & Atmospheric Sciences

In what sense do we say we are looking back in time when we are looking at the stars?

A) We see stars as they once were when their light reaches us. B) Because space curves, we are actually looking at the past when we look in the night sky. C) Because stars are emitting immense radiation, we are seeing processes that have already happened. D) Because Earth's atmosphere bends and distorts their light.

Environmental & Atmospheric Sciences