Why is the European Union concerned about pollution? a. Pollution ruins the lives of people and wildlife.
b. Many environmental problems are costly and difficult to clean up.
C. Streams and air currents spread pollution broadly.
d. all of the above

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

What is the famous rainforest in costa rica called?

Alow pressure system is formed when an air mass cools over a cool surface and sinks. true or false