24 Questions
What is the composition of the ozone layer located between the upper troposphere and lower stratosphere?
Free oxygen molecules
At what altitude is the mesosphere located above the Earth's surface?
85 km
Which layer of the atmosphere is known as the Thermosphere?
Ionosphere
What happens when gas molecules in the thermosphere are bombarded with sunrays?
They lose electrons and become ionized
In the context of the Earth as an organism, which part would be considered as its 'lungs'?
Atmosphere
Which layer of the atmosphere can support life and is considered as the biosphere?
Troposphere
Which of the following statements about igneous rocks is correct?
They form from the solidification of molten rock on the Earth's surface.
What is the primary process involved in the formation of sedimentary rocks?
Weathering, erosion, and deposition of pre-existing rocks.
Which of the following statements about metamorphic rocks is incorrect?
They can contain fossils, like sedimentary rocks.
What is the approximate percentage of salt water in the hydrosphere?
97%
What is the meaning of the term 'environment' based on its origin?
To circle or compass around something
Why can only Earth support life according to the text?
Due to the presence of liquid water
Which of the following salts is not listed as a major component of sea water?
Potassium nitrate (KNO3)
In the context of the text, what is the function of water in thermoregulation?
Water helps in energy absorption and release
Approximately how much salt is found in each liter of ocean water?
35 grams
Which layer of the Earth comprises rocks, soil, and sand?
Lithosphere
Where does the energy required for life on Earth primarily originate from?
Sun in the form of waves
What defines the biophysical environment according to the text?
The connection between living and non-living things on Earth
Which of the following is not a freshwater body?
Ocean
What percentage of Earth's fresh water is in the form of frozen glaciers or ice caps?
66%
What is the primary function of water in maintaining life on Earth?
All of the above
Which of the following is not a part of the Earth's atmosphere?
Hydrosphere
What is the primary function of the stratosphere?
Serve as a pathway for jet aircraft
What is the primary composition of the Earth's atmosphere?
78% nitrogen, 21% oxygen, 1% other gases
Test your knowledge on the environment of Earth with this quiz covering the origin of the term 'environment', natural environment, and biophysical environment. Explore the concepts introduced in Chapter 1 of Bot-609.
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