Obsidian is an extrusive rock that is formed when magma from underneath the Earth's crust breaches and becomes lava. Once the lava starts cooling, it solidifies and elements are frozen, giving the rock its glassy appearance.
Answer:
A. sugar
Explanation:
Photosynthesis is the process where plants convert light into sugar, which allows them to eat and survive!
<span>food chains follow just one path of energy as animals find food.
</span>food webs show how plants and animals are involved in ways to help them all survive.
Answer:
Explanation: reduces green house effect.
