This is the most abundant gas present in the atmosphere., Oxygen, Nitrogen, A gas inhaled by human and animals., Oxygen, Carbon dioxide, This layer of the earth protects us from too much heat., Litosphere, Hydrosphere, Atmosphere, The nearest layer on earth where life can exist., Troposphere, Stratosphere, Mesosphere, Thermosphere, Ozone layer can be found on the upper part of the________________., Troposphere, Stratosphere, Mesosphere, Thermosphere, This is where meteors burn up while entering the earth’s atmosphere., Troposphere, Stratosphere, Mesosphere, Exosphere, The outermost layer of the earth’s atmosphere., Troposphere, Stratosphere, Thermosphere, Exosphere, This is the layer where artificial satellites orbit the earth., Troposphere, Stratosphere, Thermosphere, Exosphere, ______ is a mixture of different gases., Air, Water, Soil, Earth, The layers of the Earth are important to living things like us., True, False.

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