UGC NET Environmental Science Mock - 3 - UGC NET MCQ

Acid rain is a mixture of wet and dry materials coming from atmosphere which is caused by chemical reaction of sulfur dioxide (SO₂) and nitrogen oxides (NO_x) which rises high in atmosphere which mix and react with water, oxygen and chemicals to form acidic pollutants,
so option D is correct.

Gujarat comes on top among largest amount of landmass identified as wetlands as compared to other Indian states. It accounts for 17.56% of state’s geographic area as wetland as per National Wetland Atlas, so statement 1 is correct. Statement 2 is incorrect as from the table shown, we see that total geographical area of coastal wetlands which is 25% is less as compared to 43% area of inland wetlands.

1st statement is incorrect.

1) The west Himalayas have low rainfall and heavy snowfall, thus it have temperate conditions whereas in eastern Himalayas, there is heavy rainfall, snowfall only at very high altitudes.

2) Among the flora of western Himalayas, Rhododendrons and dwarf hill bamboo and birch forests mixed with alpine pastures are common.

3) Chiru and Hangul (Kashmir Stag) are also found in this region.

Shelf list facilitates Stock verification.

Hence, The correct answer is C.

The agreement decided that the project should be known as “The Delhi Public Library, in association the UNESCO”.

Hence, The correct answer is B.

• Reliability
• Useability
• Objectivity

Hence, The correct answer is D.

SCIRUS

Hence, The correct answer is C.

Global warming can be defined as the century-scale rise in the average temperature of the Earth’s atmosphere and its related effects. Among all the given gases only Carbon dioxide contributes to the Global warming.

Hence option B is correct.

Nuclear winter is a severe and prolonged global climatic cooling effect hypothesized to occur after widespread firestorms following a nuclear war. The hypothesis is based on the fact that such fires can inject soot into the stratosphere, where it can block some direct sunlight from reaching the surface of the Earth.

Hence option D is correct

An air mass is a large body of air that has similar moisture (density) and temperature characteristics. A front is a transition zone between two air masses. A cold front is a warm-cold air boundary with the colder air replacing the warmer.

Hence option C is correct.

Much of Tibet lies at altitudes over 18,000 feet where the pressure is about 500 mb. At such altitudes, the Tibetans are above roughly 50% of the air molecules in the atmosphere.

Hence option C is correct.

On June 4, 1963, less than a year after the controversial environmental classic “Silent Spring” was published, its author, Rachel Carson, testified before a Senate subcommittee on pesticides. She was 56 and dying of breast cancer.

Hence option C is correct.

If water vapour comprises 3.5 percent of an air parcel whose total pressure is 1,000 mb, the water vapour pressure would be 35 mb.

Hence option B is correct.

Slip erosion is also know as landslide. When earthquakes occur on areas with steep slopes, many times the soil slips causing landslides.

Hence option A is the correct answer.

Kurukh also Kurux, Oraon or Uranw, is a Dravidian language spoken by nearly two million Oraon and Kisan tribal people of Jharkhand, Madhya Pradesh, Chhattisgarh, Odisha and West Bengal in India.

Hence option D is the correct answer.

Recently, on 20 September, 2017, the Treaty on the Prohibition of Nuclear Weapons was signed at the United Nations headquarters. This is the first multilateral legally-binding instrument for nuclear disarmament to have been negotiated in 20 years was adopted. While 122 countries voted in favour of the treaty, Netherlands voted against it, Singapore abstained, and 69 nations did not vote. India and other nuclear-armed nations- the United States, Russia, Britain, China, France, Pakistan, North Korea and Israel had not participated in the negotiations.

Hence option A is the correct answer

The global temperature has risen by about 8 degree celsius, since the peak of last glacialisation.

Hence option C is the correct answer.

Uranium is the fuel most widely used to produce nuclear energy. That's because uranium atoms split apart relatively easily. Uranium is also a very common element, found in rocks all over the world.

Hence option C is the correct answer

Thermal energy, or heat, is the energy that comes from the movement of atoms and molecules in a substance. Heat increases when these particles move faster. Geothermal energy is the thermal energy in the earth. Motion energy is energy stored in the movement of objects.

Hence option A is the correct answer.

EVS is a subject that is concerned with nurturing children's curiosity about the natural environment.
EVS at the primary stage is visualized as an integrated subject. It is beyond a single subject approach.
Hence option A is the correct answer.

Without this greenhouse effect, the average surface temperature would be 255 degrees kelvin (-18 degrees Celsius or 0 degrees Fahrenheit); a temperature so low that all water on Earth would freeze, the oceans would turn into ice and life, as we know it, would not exist.

Hence. The correct answer is B.

Biodiversity increases towards the equator.

Hence. The correct answer is A.

Although there’s nothing official about it, many say the March or vernal equinox signals the start of spring in the Northern Hemisphere and autumn in the Southern Hemisphere. The equinox is a hallmark of the seasons. At this equinox, the sun crosses the celestial equator, moving from south to north. The March 2020 equinox falls on March 20 at 03:50 UTC. That’s March 19 at 10:50 p.m. Central Daylight Time for us in North America; translate to your time zone.

Hence. The correct answer is D.

The energy content in a trophic level is determined is determined by considering a few individuals of a species in that trophic level.

Hence. The correct answer is B.

Over 500,000 people were exposed to methyl isocyanate (MIC) gas. The highly toxic substance made its way into and around the small towns located near the plant.

Hence. The correct answer is A.

An object whose temperature is at absolute zero will not emit radiant energy.

All objects actually emit radiant energy when their temperature is greater than absolute zero. Absolute zero is equal to zero Kelvin which is equal to -273°C.

The development of a bare area without any life form is called Nudation.

Hence. The correct answer is A.

Steppe is also known as Temperate Grassland Biome. They are practically treeless, and the grasses are much shorter.

• Poleward, an increase in precipitation gives rise to a transitional zone of wooded steppes where some conifers gradually appear.
• Grasses are fresh and nutritious and do not have much animal diversity.
• In physical geography, a steppe is an ecoregion characterized by grassland plains without trees apart from those near rivers and lakes.
• Steppe biomes may include the montane grasslands and shrublands biome. the temperate grasslands, savannas, and shrublands biome.
• A steppe is a dry, grassy plain and mainly occurs in temperate climates, which lie between the tropics and polar regions.

Because water boils at a lower temperature at higher elevations, foods that are prepared by boiling or simmering will cook at a lower temperature, and it will take longer to cook. High altitude areas are also prone to low humidity, which can cause the moisture in foods to evaporate more quickly during cooking.

Hence. The correct answer is B.