Astronomy
Biology
Environmental Sci.
Chemistry/Physics
Geology
1

Is the only planet that supports life in the Solar System

What is Earth

1

Is the part of the plant that usually grows in the soil

What is Root?

1

Crust, Mantle, Outer core, and Inner core.

What are the four layers of Earth?

2

Is the innermost and hottest layer of Earth.

What is Inner Core ?

3

Is the thickest layer of Earth.

What is Mantle?

400

Is the chemical formula of water

What is H2O?

500

Are produced by excess NO2 and SO2 from burning fossil fuels and cause damage to buildings and plants.

What is Acid Rains?