Multiple Choice Questions on Earth’s atmosphere 1-The atmosphere of Earth is the (A) layer of gases that surrounds the earth (B) layers of earth’s crust (C) both (A) and (B) (D) none of the above 2-The atmosphere of earth is retained by (A) earth’s gravity (B) earth’s core (C) both (A) and (B) (D) […]
Read MoreMultiple Choice Questions on Ozone Layer Depletion 1-The Ozone hole is a much larger springtime decrease in ___ ozone around Erath’s polar regions. (A) exospheric (B) stratospheric (C) thermospheric (D) mesospheric 2-The main cause of ozone depletion and the ozone hole is (A) halocarbon refrigerants (B) propellants (C) foam-blowing agents (D) all of the […]
Read MoreHydrosphere Multiple Choice Questions 1-The hydrosphere is the mass of water found (A) on the earth (B) found under the earth (C) above the surface of a planet (D) all of the above 2-Fresh water accounts for __ of the water on earth. (A) 2.5% (B) 5% (C) 7.5% (D) 10% 3-Out of […]
Read MoreEnergy – The capacity to do work is known as energy. It is a conserved quantity. It can neither be created nor be destroyed but can be transformed from one form to another. There are many types of energy like Mechanical energy, Electrical energy, light energy, nuclear energy, heat energy, solar energy etc. There are […]
Read MoreWater Purification Methods: Sometimes water contains some unwanted substances which is not suitable for drinking. This type of water needs purification. The aim of purification is to make water fit for specific purposes. Various methods used for the purification of water are as follows. Distillation method: The dirty water is boiled to produce steam. This […]
Read MoreMultiple Choice Questions on Solid Waste Management 1-Waste is any material that is not needed by the (A) owner (B) producer (C) processor (D) all of the above 2-Which of the following is true? (A) there is no real waste in nature (B) the apparent waste from one process becomes input to another (C) all […]
Read MoreMultiple Choice Questions on Noise Pollution 1-Noise is (A) an unwanted noise (B) an irritant (C) a source of stress (D) all of the above 2-Following contributes the maximum noise (A) transport sector (B) industrial and construction machinery (C) special events (D) none of the above 3-Sound is measured in (A) Hertz (B) Decibel (C) […]
Read MoreMultiple Choice Questions (MCQ) on Acid Rain 1-Acid Rain is caused by emissions of (A) Sulphur dioxide (B) Nitrogen oxide (C) Both (A) and (B) (D) Carbon dioxide 2-Sulphur dioxide is produced by (A) Lightning strikes (B) Volcanic eruptions (C) Gasoline engine (D) All of the above 3-The adverse effect(s) of acid rain […]
Read MoreMultiple Choice Questions (MCQ) on Global Warming 1-Global warming also refers to as (A) Climate change (B) Ecological change (C) Atmosphere change (D) None of the above 2-Global warming is observed century-scale rise in the _______ of the Earth’s climate system. (A) Maximum temperature (B) Minimum temperature (C) Average temperature (D) Temperature 3-Which […]
Read MoreMultiple Choice Questions (MCQ) on Ecosystems 1-A single bacterium in the soil interacts with (A) The water (B) Air (C) Particles of soil around it (D) All of the above 2-The region of earth, where life exists is known as (A) Atmosphere (B) Biosphere (C) Lithosphere (D) Hydrosphere 3-In the biosphere energy is […]
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