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Question 1 of 50
The instrument for measuring the intensity of earthquakes is called:
A seismometer is an instrument that responds to ground noises and shaking such as caused by earthquakes, volcanic eruptions, and explosions.
Question 2 of 50
The brightest planet in our solar system is:
Venus is the brightest planet in our Solar System. It can be seen with the unaided eye from Earth.
Question 3 of 50
The source of the sun’s energy is the process of:
Question 4 of 50
Which is the hottest planet of the solar system?
In general, the surface temperature decreases with increasing distance from the sun. Venus is an exception because its dense atmosphere acts as a greenhouse and heats the surface to above the melting point of lead, about 471 degrees Celsius.
Question 5 of 50
The Milky Way Galaxy was first observed by:
From Earth, the Milky Way appears as a band because its disk-shaped structure is viewed from within. Galileo Galilei first resolved the band of light into individual stars with his telescope in 1610.
Question 6 of 50
A geyser is a spring which:
A geyser is a spring characterized by an intermittent discharge of water ejected turbulently and accompanied by steam.
Question 7 of 50
The main cause of global climate change is:
The main cause of climate change is burning fossil fuels such as oil, gas, and coal. When burnt, fossil fuels release carbon dioxide into the air, causing the planet to heat up.
Question 8 of 50
Which one of the following is an igneous rock?
Granite is a coarse-grained Igneous Rock composed mostly of quartz, alkali feldspar, and plagioclase.
Question 9 of 50
The sphere of living matter together with water, air and soil on the surface of the earth is known as:
The sphere of living matter together with water, air and soil on the surface of the earth is known as Biosphere. The biosphere, also known as the ecosphere, is the worldwide sum of all ecosystems.
Question 10 of 50
Very strong and cold icy winds that blow in the Polar regions are called:
A blizzard is a severe snowstorm characterized by strong sustained winds of at least 56 km/h and lasting for a prolonged period of time.
Question 11 of 50
The tropical grassland is called:
Savannah is a large, flat area of land covered with grass, usually with few trees. It is also known as tropical grasslands, which are found to the north and south of tropical rainforest biomes.
Question 12 of 50
The narrow stretch of water connecting two Seas is called:
The narrow stretch of water connecting two Seas is called Strait. Most commonly it is a channel of water that lies between two landmasses. Some straits are not navigable, for example because they are too shallow or because of an unnavigable reef or archipelago.
Question 13 of 50
The topography of plateau is ideal for:
The plateau is also called a high plain or a tableland. The topography of the plateau is ideal for the generation of hydropower.
Question 14 of 50
Which one of the following is the hottest planet in the Solar System?
Question 15 of 50
Which of the following statements is correct?
Magma contains dissolved gases and lava does not. Gas gives magmas their explosive character because the volume of gas expands as pressure is reduced. The composition of the gases in magma are: mostly H2O (water vapor) and some CO2 minor amounts of sulfur, chlorine, and fluorine gases.
Question 16 of 50
Which one of the following is the example of sedimentary rocks?
Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at the Earth’s surface, followed by cementation. Loess is a sedimentary deposit composed largely of silt-size grains that are loosely cemented by calcium carbonate.
Question 17 of 50
Mica is found in which or one of the following pairs of rocks?
Mica is common in igneous and metamorphic rock and is occasionally found as small flakes in sedimentary rock. It is abundant in many rocks, e.g., shale, slate, phyllite, schist, gneiss, and granite.
Question 18 of 50
The Mohorovicic (Moho) Discontinuity separates:
Mohorovicic Discontinuity is the boundary that separates the Earth’s crust from the subjacent mantle at depths of 30–50 km below the continents and 5–10 km below sea level in the oceans.
Question 19 of 50
Which one is the continent where Tundra type of climate is not found?
The tundra climate region occurs between 60° and 75° of latitude, mostly along the Arctic coast of North America, Eurasia (Europe and Asia) and on the coastal margins of Greenland.
Question 20 of 50
If the temperature of a place increases suddenly, the relative humidity:
Humidity is inversely proportional to temperature. If temperature increases it will lead to a decrease in relative humidity, thus the air will become drier whereas when temperature decreases, the air will become wet means the relative humidity will increase.
Question 21 of 50
Which one of the following is not an example of planetary winds?
The winds that flow throughout the year from one latitude to another latitude because of latitudinal differences in the air pressure are called planetary winds. There are three main types of planetary winds – the trade winds, the westerlies and the easterlies. Chinook is a strong wind that becomes warm and very dry while rapidly descending the lee side of mountain slopes.
Question 22 of 50
The climate of North America is influenced during winter by the:
Four major types of air masses that influence the weather in North America are: Maritime Tropical (mT), Maritime Polar (mP), Continental Tropical (cT) and Continental Polar (cP). The climate of North America is influenced during winter by the Continental Polar air mass. The most common example of continental polar air entering the U.S. comes in winter, when the jet stream dips southward, carrying cold, dry cP air, sometimes as far south as Florida. When it moves across the Great Lakes region, cP air can trigger lake effect snow.
Question 23 of 50
Storms of gases are visible in the chromosphere of the Sun during:
The chromosphere is the second of the three main layers in the Sun’s atmosphere and is roughly 3,000 to 5,000 kilometers deep. Its rosy red color is only apparent during Solar eclipses.
Question 24 of 50
Recharging of water table depends on:
Groundwater recharge depends on several factors such as infiltration capacity, stochastic characteristics of rainfall, and climate factors. The spatial and temporal distribution of the rainfall mainly controls the natural groundwater recharge.
Question 25 of 50
What is the principal ore of aluminum?
Bauxite ore is the world’s primary source of aluminum. The ore must first be chemically processed to produce alumina (aluminum oxide). Alumina is then smelted using an electrolysis process to produce pure aluminum metal.
Question 26 of 50
The largest planet in our solar system is:
Jupiter is the fifth planet from the Sun and the largest in the Solar System.
Question 27 of 50
Earthquake is caused by:
An earthquake is caused by a sudden slip on a fault. The tectonic plates (Earth’s outermost layer) are always slowly moving, but they get stuck at their edges due to friction. Tectonic plates are pieces of Earth’s crust and uppermost mantle, together referred to as the lithosphere.
Question 28 of 50
We always see the same face of the moon, because:
The moon keeps the same face pointing towards the Earth because it takes equal time (27 days) for revolution around the earth and rotation on its own axis.
Question 29 of 50
The four largest planets of the Solar System in decreasing size are:
The four largest planets (with diameter in Km) of the Solar System in decreasing size are: Jupiter (142,800), Saturn (120,660), Uranus (51,118) and Neptune (29,528).
Question 30 of 50
Which layer of the earth’s atmosphere reflect back the radio waves to the earth’s surface?
Question 31 of 50
Which one of the following is an abiotic and renewable resource?
Abiotic factors refer to non-living physical and chemical elements in the ecosystem. Examples of abiotic factors are water, air, soil, sunlight, and minerals. Biotic factors are living or once-living organisms in the ecosystem. A renewable resource is a natural resource which will replenish to replace the portion depleted by usage and consumption.
Question 32 of 50
A storm is predicted if atmospheric pressure:
A falling air pressure generally means there is an approaching storm that will arrive within the next 12 to 24 hours.
Question 33 of 50
Smog is a combination of:
Smog is a form of air pollution. The word “smog” is a combination of the words “smoke” and “fog.”
Question 34 of 50
The number of satellites of the planet is Mercury is:
Mercury and Venus have no natural satellites. Earth has one natural satellite (Moon) and Mars has two tiny natural satellites (Phobos and Deimos).
Question 35 of 50
Which of the following does not belong to the solar system?
A nebula is an interstellar cloud of dust, hydrogen, helium and other ionized gases. It does not belong to the solar system.
Question 36 of 50
Which one of the following methods of soil conservation is most effective in arid areas?
Mulching, shelter belts and vegetative cover are some methods by which soil can be conserved in semi-arid and arid regions. The shelter belt is most effective in arid areas. Shelter belts are rows of trees, usually along fence lines.
Question 37 of 50
Tsunamis are caused by:
A tsunami is a series of extremely long waves caused by a large and sudden displacement of the ocean, usually the result of an earthquake below or near the ocean floor.
Question 38 of 50
Which is the coldest among the following?
Pluto was the planet furthest away from the Sun is coldest. However, due to the IAU’s decision in 2006 to reclassify Pluto as a “dwarf planet”.
Question 39 of 50
The cause for the Tsunami, as deduced by the seismologists, is:
A tsunami can be generated when the earthquake causes a sudden vertical deformation of the seafloor, thus displacing the overlying water from its equilibrium position.
Question 40 of 50
River erosion is at the greatest where river’s:
River erosion is at the greatest where river’s flow is fast. The outer bank has the greatest erosion because the water is flowing faster along the outer bank than the inner bank.
Question 41 of 50
The lower layer of atmosphere is called:
The troposphere is the lowest layer of Earth’s atmosphere. Most of the mass (about 75-80%) of the atmosphere is in the troposphere. Most types of clouds are found in the troposphere, and almost all weather occurs within this layer.
Question 42 of 50
Which one of the following does not cause soil erosion?
Soil erosion is the natural process in which the topsoil of a field is carried away by physical sources such as wind and water. In terrace farming, a terrace is a piece of the sloped plane that is cut into a series of successively receding platforms, that resemble steps. This prevents rain from washing away soil, hence preventing soil erosion.
Question 43 of 50
The term epicentre is associated with:
Epicentre, point on the surface of the Earth that is directly above the underground point (called the focus) where fault rupture commences, producing an earthquake.
Question 44 of 50
What is the scale used for measuring the intensity of the earthquake?
The Richter scale is a measure of the strength of earthquakes, developed by American seismologists Charles Francis Richter.
Question 45 of 50
Which is the lowest layer of the atmosphere?
Question 46 of 50
Among the following, the celestial body farthest from the Earth is:
Pluto is farthest from the Earth. Our Solar System has eight planets which orbit the sun. In order of distance from the sun they are; Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Pluto, which until recently was considered to be the farthest planet, is now classified as a dwarf planet.
Question 47 of 50
Global warming is expected to result in:
Global warming is the long-term heating of Earth’s climate system observed since the pre-industrial period (between 1850 and 1900) due to human activities, primarily fossil fuel burning, which increases heat-trapping greenhouse gas levels in Earth’s atmosphere.
Question 48 of 50
A pulsar is a highly magnetized rotating compact star that emits beams of electromagnetic radiation out of its magnetic poles.
Question 49 of 50
Fog is an example of:
Fog is an aerosol, a type of colloid consisting of a liquid (water) dispersed in a gas (air).
Question 50 of 50
Seismic sea waves which approach the coasts at greater force are known as:
Tsunami is a Japanese word meaning ‘harbor wave’, and is sometimes called seismic sea wave.