Earth Science

2. The life zone of the Earth and includes all living organisms.
6. The plastic layer of the mantle which the tectonic plates move.
8. The Earth's atmosphere is composed of almost 78% of this.
9. The Earth's magnetic field.
11. It is the "blue" planet.
12. According to this hypothesis, the biosphere is a self-regulating system that is capable of controlling its physical and chemical environment.
16. Scientists who study Earth and the processes that have shaped earth over time.
17. It is the lowest layer where temperature decreases.
18. This is the highest layer of the atmosphere in which the gases are all mixed up.
20. It is considered to be the thickest layer of Earth and holds 84% of the Earth's volume.

1. This comprises the solid Earth and includes both the Earth's surface and the various layers of the Earth's interior.
3. This covers about 71% of the Earth's surface.
4. The gaseous envelope that surrounds the Earth and constitutes the transition between the vacuum of space.
5. This contains both crust and uppermost layer of mantle.
7. This includes all water on Earth.
10. This contains ozone that protects life on the planet by filtering harmful ultraviolet radiation from the Sun.
13. The core is made of Iron and what?
14. A set of interconnected components that are interacting to form a unified whole.
15. The outermost layer where energy and mineral resources are derived.
19. The Earth receives energy from this and returns some of this energy to space.