According to astronomers, the age of the universe

is estimated to be

(1) 1.3 billion years

(2) 4.6 billion years

(3) 7.9 billion years

(4) 13.8 billion years

Another word for a earthquake's strength is it's what?

What is the main source of water in the Sahel? rainfall inland lakes wells rivers

State which of the following processes are potential sources of gaseous air pollutants, particulate air pollutants, both, or neither:

Which religion lies near the equator, the savannah or rain forests?

What is the main religious text of Muslims?

What term is given to the land area that is drained by a river and its tributaries?

Why do they change, the. wind thats at the beach

Tool to graph the function f (x) = 1/2x - 3

Most natural disasters are which of the following? Group of answer choices cyclic, in that they occur at predictable intervals rarely if ever cyclic because there are too many overlapping effects interactions between two closely related events

The ob river flows through what region? a. central asia b. siberia c. moldova d. ukraine