Question

match the vocabulary word with the correct definition.
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sum of the surfaces, atmosphere and hydrosphere of the earth which is occupied by living organisms
all the bodies of water on the earth
gasses surrounding the earth from surface to space
study of the relationship between an organism and its environment
hydrosphere ecology atmosphere biosphere

Explanation:

• Biosphere: It is the sum of the surfaces, atmosphere and hydrosphere of the earth which is occupied by living organisms.
• Hydrosphere: Refers to all the bodies of water on the earth.
• Atmosphere: Comprises the gases surrounding the earth from surface to space.
• Ecology: Is the study of the relationship between an organism and its environment.

Answer:

• sum of the surfaces, atmosphere and hydrosphere of the earth which is occupied by living organisms → Biosphere
• all the bodies of water on the earth → Hydrosphere
• gases surrounding the earth from surface to space → Atmosphere
• study of the relationship between an organism and its environment → Ecology