6. which term means "rainy cloud"? a stratus b cirrus c nimbus dcumulus

Clouds that produce rain and snow are called "Nimbus" clouds.

Example: Two examples are the nimbostratus or the cumulonimbus clouds.

Energy conversion involves ATP and ADP. when energy is released, the reaction tends to break down a larger molecule to a smaller form. In this case, the larger molecule is ATP made up of three phosphates groups while ADP is only composed of two phosphate groups. Hence the answer is b. ATP to ADP