What causes certain disasters to occur in certain areas

Give an example of rocks that are not formed by the rock cycle.

What is most abundant component of air by volume? A. nitrogen B. oxygen C. hydrogen D. ozone

Which variable stars have pulsation periods between 1.5 hours and 1.2 days? A. Protostars B. Cepheid variables C. RR Lyrae variables D. Nebulas

These factors pose a threat to the forests of North America

An example of mechanisations of farming

How does the age of the oldest continental crust compared to the age of the oldest ocean crust apex?

How does water enter the atmosphere? a. liquid water evaporates from lakes when heated by the sun. b. frozen water sublimates from ice and snow. c. liquid water is lost from tree leaves during evapotranspiration. d. all of the above

What were some of the results of Soviet control of Eastern Europe? Select all that apply. communism market economy collectives prices determined by government privatization restricted freedom of expression shortages of food

Fossilization: (A) needs oxygen to occur (B) requires protection from scavengers (C) can only occur in the ocean (D) is more common in sand than in mud

A capitalist country has which of the following economic systems?