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The Spheres of Life

The atmosphere
Horizontales
What makes up 12% of a water molecule by weight? (This is not specifically stated in the notes. You will have to use some math. Sorry!)
Part of the hydrosphere which is frozen
The Earth's crust and mantle
Made or modified by humans
97% of the Earth's water is found in the ________ .
_______ in the air is a part of the hydrosphere.
The atmosphere is 79% ________.
All of the air surrounding the Earth
The atmosphere is just under 21% ______.
Verticales
All of the living organisms on Earth and where they exist.
Most of the atmosphere is located close to the Earth's surface where it is most ________.
Three quarters of all fresh water is found in ____ sheets.
All of the water on the planet
Frozen water in the soil which never melts
The crust of the Earth is ______ and is composed of minerals.
Another gas found in the atmosphere in small quantities is carbon _______.