What is a nova?
a. an eruption from an old and dying star
b. the violent death of an aging star
c. a cloud of gas and dust left behind by a dead star
d. a dense area of powerful gravity

Eastern europe and parts of northern europe have which of the following climates?

The primary agent of contact metamorphism is

What forms of energy are involved when snow on a mountain breaks loose, resulting in an avalanche? during an avalanche, the( 1 ) energy of the snow on the mountain is converted into ( 2 ) energy as the snow cascades down. ( 1 ) a. elastic b. kinetic c. potential d. radiant ( 2 ) a. chemical b. kinetic c. nuclear d. potential