12. The Greeks were known as the first astronomers.

A. true

B. false

It's true

Which of the following is not true about arid deserts? a. they can be found in north america. b. the rain falls mostly as snow during the winter. c. they are very hot and dry. d. the rain often evaporates before it hits the ground.

Besides being classified by their composition, how else are rocks classified? a) by their texture b) by their mass c) by their color d) by their volume

Actions being undertaken to address climate change in Western Europe include: 1.) decreasing production 2.) eliminating tariffs 3.) increasing immigration 4.) reducing consumption (Multiple selection) !

What 4 factors influence the amount of runoff

Geologic time is divided into segments based on two kinds of information. What are they?

How high does the earth's atmosphere extend? A. 100 m B. 1,000 m C. 10 km D. 100km

How to grow plants in space?

Based on this map of oil imports, which nation imported the greatest number of oil barrels each day in the years before 2006? A. China B. Australia C. Canada D. the United States

How far will a P-wave travel in 9 min 20 sec?

The land in Mexico City is sinking. What is the primary cause of this problem? A. deforestation caused by cutting down trees B. too much water being taken from underground aquifers C. too many offices and towers being built in the city D.