Final answer:
The question is about the earth's layers and the envelope of air surrounding the earth.
Step-by-step explanation:
1. Stratosphere
2. Troposphere
3. Biosphere
4. The envelope of air that surrounds the earth is the atmosphere.
5. Extrusive igneous rocks are also called volcanic rocks.
A habitat is a part of the earth's surface where living things exist.
Crust is the thickest layer of the earth.
Hydrosphere is the water section of the earth.
Learn more about Layers of the earth's atmosphere and surface