important to man. It is the only planet known to have the right temperature and the right atmosphere to

support the kind of environments and natural resources in which plants and man and other animals can

survive. This fact is so important to man that he has developed a special science called ecology, which

deals with the dependence of all living things will continue to survive on the planet.

Many millions of kinds of plants and animals have developed on Earth. They range in size from

microscopic plant and animals to giant trees and mammoth whales. Distinct types of plants or animals may

be common in many parts of the world or may be limited to a small area. Some kinds thrive under

conditions that are deadly for others. So some persons suggest that forms of life quite different from

those known on Earth might possibly survive on planets with conditions that are far different from

Many persons believe that the Earth is the only planet in the solar system that can support any

kind of life. Scientists have theorized that some primitive forms of life may exist on

The atmosphere contains water vapour and a number of other gases. Near the surface of the Earth,

The temperature of the atmosphere also falls at high altitudes. At 36 000 feet (11 000 meters),

The Earth's atmosphere is dense enough for animals to breathe easily and for plants to take up

of the Earth from the environment of space. This boundary is known as the magnetopause. It is the

lithosphere is made up of all the stone, rock, and the whole interior of the planet Earth.

where the gas of interplanetary space begins.

All these events are recorded in the Earth's rocks, but the record is not continuous in any

Some common words found in the essay are:
Earth's Layers, Arctic Antarctic, Water Supply, Earth Venus, EARTH Earth, Earth Extensive, Earth Earth's, Changing Earth, According Newton's, Earth Water, earth's surface, magnetic field, earth's magnetic field, sea level, earth's magnetic, plants animals, surface earth, earth earth's, earth's atmosphere, recorded history, carbon dioxide, grams cubic centimeter, ounces cubic inch, planet solar system, kinds plants animals,
Approximate Word count = 4857
Approximate Pages = 19 (250 words per page double spaced)