Which is an example of a biotic factor?
-sunlight
-soil
-deer
-river

What was the land like over 500 million years ago? what was under the sea?

Iguanas need to live in a habitat that is very warm, so the pet store warms their enclosures with "basking lights" which act as an artificial sun. describe how the three methods of thermal energy transfer may take place within the iguana's enclosure.

This is so important ugh its 25 points