Models are used in scientific research in order to:. a. determine the best research design for testing a hypothesis b. study systems that would be too complicated or too large to manipulate c. acquire research grant money from rich donors d. study systems that would be too expensive to manipulate

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

Name one type of data that h-r diagrams do not show.

Maria is going to a hiking trip this weekend. she has been busy shopping for the trip. which of these items that she bought are a want for her?