Description : Pulsars are : (1) stars moving towards the Earth (2) stars moving away from Earth (3) rapidly spinning stars (4) high temperature stars
Last Answer : (3) rapidly spinning stars Explanation: Pulsars are celestial objects, thought to be rapidly spinning stars, that emits regular pulses of radiowaves and other electromagnetic radiation at the rate of upto one thousand pulses per second.
Description : Pulsars are – (1) stars moving towards the Earth (2) stars moving away from Earth (3) rapidly spinning stars (4) high temperature stars
Last Answer : (3) rapidly spinning stars Explanation: The word "pulsar" is a contraction of "pulsating star. A pulsar is formed when a massive star collapses exhausts its supply of fuel. It blasts out ... an object composed primarily of neutrons packed so tightly that they no longer exist as normal matter.
Last Answer : (3) rapidly spinning stars Explanation: Pulsars are celestial objects, thought to be rapidly spinning stars, that emits regular pulses of radio waves and other electromagnetic radiation at the rate of upto one thousand pulses per second.
Description : Stars twinkle but planets do not twinkle because (1) they emit light of a constant intensity (2) their distance from the earth does not change with time (3) they are very far away from ... and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable
Last Answer : they are nearer to the earth and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable
Description : A spinning neutron star is known as (1) White dwarf (2) Black hole (3) Pulsar (4) Quasar
Last Answer : Pulsar
Description : A pulsar is a rapidly spinning neutron star which emits: A. A blinding light when it aligns with the planets B. Radio waves detectable from Earth (Answer) C. A gravitational pull which attracts high energy dust particles D. Enough energy to power itself indefinitely
Last Answer : B. Radio waves detectable from Earth (Answer)
Description : Why are winters more severe in Southern Hemisphere than in Northern Hemisphere? (1) Earth is titled towards the sun in the Northern Hemisphere (2) Northern Hemisphere receives more sunlight (3) Because of more iceberg activity in Southern Hemisphere (4) Southern Hemisphere is less inhabited
Last Answer : Earth is titled towards the sun in the Northern Hemisphere
Description : The rapidly growing mass of phytoplankton covering the surface water of a lake or pond is known as : (1) Eutrophication (2) Water bloom (3) Water pollution (4) Water hyacinth
Last Answer : Eutrophication
Description : Sea water is saltier than rain water because (1) rivers wash away salts from earth and pour them into the sea (2) sea beds have salt producing mines (3) sea animals are salt producing (4) the air around the sea is saltish
Last Answer : rivers wash away salts from earth and pour them into the sea
Description : The South-East trade winds are attracted towards the Indian subcontinent in the rainy season due to (1) the development of cyclone over the equator (2) the effect of easterlies (3) the effect of Northern-East trade winds (4) the presence of low atmospheric pressure over NorthWest India
Last Answer : the presence of low atmospheric pressure over NorthWest India
Description : Which one of the following is called North-easter? (1) Cold and fast-blowing winds in northern hemisphere that move from sub-polar to polar regions (2) Cold and fast-blowing winds in ... -blowing winds from the polar region in northern hemisphere (4) Winds blowing towards Kazakhstan in Central Asia
Last Answer : Cold and fast-blowing winds from the polar region in northern hemisphere
Description : Why is the South Pole colder than the North Pole ? (1) High altitude (2) More rainfall (3) Strong winds (4) Away from the sun
Last Answer : High altitude
Description : Can any rapidly spinning object be considered a gyroscope?
Last Answer : Yes.
Description : What is the mean temperature of Earth? (1) 6 degree Celsius (2) 16 degree Celsius (3) 26 degree Celsius (4) 36 degree Celsius
Last Answer : 16 degree Celsius
Description : The planet which has the highest surface temperature is (1) Jupiter (2) Earth (3) Pluto (4) Venus
Last Answer : Venus
Description : The presence of a lion in the forest is essential in order to (1) keep the trees safe from felling (2) add beauty in the forests (3) save the pastures from being overgrazed (4) keep other carnivorous animals away
Last Answer : save the pastures from being overgrazed
Description : Laterite soils are found in area where– (1) normal temperature and rain fall is less (2) temperature is high and rainfall is heavy (3) temperature is low and rainfall is nominal (4) temperature is high and rainfall is normal
Last Answer : temperature is high and rainfall is heavy
Description : Which of the following reasons is responsible for lack of vegetation in the deserts ? (1) Heavy volume of sands (2) Absence of B-horizon in the soil (3) High temperature (4) Lack of rainfall
Last Answer : Lack of rainfall
Description : Cyclones are caused due to (1) low pressure (2) high pressure (3) low temperature (4) high density
Last Answer : low pressure
Description : Biosphere refers to (1) the area of the land inhabited by living organism (2) the part of ocean inhabited by plants and animals (3) the portion of the earth, including the oceans, the land, the soil and the atmosphere inhabited by living organisms (4) the atmosphere surrounding the living organisms
Last Answer : the portion of the earth, including the oceans, the land, the soil and the atmosphere inhabited by living organisms
Description : The word Biosphere refers to : (1) Zone of soil, water and air around earth capable of supporting the flora and fauna. (2) Part of earth surface which can support the flora (3) Parts of air around earth a where life can exist (4) Zone of water on earth which can support life.
Last Answer : Zone of soil, water and air around earth capable of supporting the flora and fauna.
Description : Dumping of solid waste in lowlying areas earth cover is called as : (1) Sanitary landfilling (2) Open dumping (3) Composting (4) Incineration
Last Answer : Sanitary landfilling
Description : The largest ecosystem of the Earth is (1) Biome (2)Hydrosphere (3) Lithosphere (4)Biosphere
Last Answer : Biome
Description : The sphere of living matter together with water, air and soil on the surface of the earth is known as (1) Lithosphere (2) Biosphere (3) Hydrosphere (4) Atmosphere
Last Answer : Biosphere
Description : The food chain refers to the transfer of energy from : (1) the interior of the earth to the surface (2) lower to higher latitudes (3) one organism to another (4) organisms of the land to those of the sea by means of river
Last Answer : one organism to another
Description : The tides in the sea are primarily due to (1) the atmospheric effect of the Earth (2) the gravitational effect of Venus on the Earth (3) the gravitational effect of the Sun on the Earth (4) the gravitational effect of the Moon on the Earth
Last Answer : the gravitational effect of the Moon on the Earth
Description : Tides in the sea are caused by (1) effect of Sun (2) effect of Moon (3) eombined effect of Moon and Sun (4) gravitational force of Earth and Sun
Last Answer : eombined effect of Moon and Sun
Description : Tides are caused by the gravitational pull of the (1) Earth on the Moon (2) Earth on the Sun (3) Sun and Moon on the Earth (4) Moon on the Earth
Last Answer : Sun and Moon on the Earth
Description : The deepest surface depression on the earth is (1) Kurile Trench (2) Mariana Trench (3) Tonga-Kermadec Trench (4) Bentley Subglacial
Last Answer : Mariana Trench
Description : The amount of insolation received at a place on the surface of the earth depends upon: (1) its climate (2) the longitude of the place (3) its latitude (4) the altitude of the place
Last Answer : its latitude
Description : Which one of the four regions above the earth has smallest height (km.) ? (1) Stratosphere (2) Mesosphere (3) Thermosphere (4) Troposphere
Last Answer : Troposphere
Description : The atmospheric layer closest to the earth is: (1) Mesosphere (2) Hydrosphere (3) Troposphere (4) Ionosphere
Description : The solar radiation coming to Earth is called (1) Radiant energy (2) Insolation (3) Sunshine (4) Terrestrial radiation
Last Answer : Insolation
Description : Atmospheric pressure exerted on earth is due to : (1) rotation of earth (2) revolution of earth (3) gravitational pull (4) uneven heating of earth
Last Answer : gravitational pull
Description : The deflection of the winds to the right in the northern hemisphere is caused by : (1) revolution of the earth (2) rotation of the earth (3) uneven heating of the earth (4) All the above
Last Answer : rotation of the earth
Description : What is the position of the Earth when it is at the greatest distance from the sun ? (1) Aphelion (2) Antipode (3) Perihelion (4) Aldiate
Last Answer : Aphelion
Description : The core of the earth is also known as (1) Lithosphere (2) Mesosphere (3) Barysphere (4) Centrosphere
Last Answer : Barysphere
Description : If speed of rotation of the earth increases, the weight of the body (1) decreases (2) increases (3) remains the same (4) may increase or decrease
Last Answer : decreases
Description : Magnetic Meridian is a (1) Line parallel to the equator of the Earth (2) Latitude (3) Line joining the geographic north and geographic south of Earth (4) Plane passing through the magnetic north and magnetic south of Earth
Last Answer : Plane passing through the magnetic north and magnetic south of Earth
Description : A landscape which is caused due to the fissure in the earth along which one side has moved down with reference to the other is known as (1) Rift Valley (2) U Shaped Valley (3) V Shaped Valley (4) Hanging Valley
Last Answer : Rift Valley
Description : Molten rock below the surface of the earth is called (1) Basalt (2) Laccolith (3) Lava (4) Magma
Last Answer : Magma
Description : Why the Earth is having its own atmosphere ? (1) Winds (2) Clouds (3) Gravity (4) Rotation of the Earth
Last Answer : Gravity
Description : _________ is the thinnest layer of Earth. (1) Mantle (2) Outer Core (3) Crust (4) Inner Core
Last Answer : Crust
Description : Uneven distribution of insolation on the earth is mainly due to the (1) spherical shape of the earth (2) distribution of land and water (3) direction of the winds (4) presence of pressure belts
Last Answer : spherical shape of the earth
Description : The earth completes one rotation on its axis in : (1) 23 hrs. 56 min. 4.9 sec (2) 23 hrs. 10 min. 2 sec (3) 23 hrs. 30 min. (4) 24 hrs.
Last Answer : 23 hrs. 56 min. 4.9 sec
Description : Earthquakes are caused by (1) Denudation (2) Tectonism (3) Earth revolution (4) Earth rotation
Last Answer : Tectonism
Description : Solar eclipse occurs when (1) the Moon does not lie on the line joining the Sun and the Earth (2) the Moon comes between the Sun and the Earth (3) the Sun comes between the Moon and the Earth (4) the Earth comes between the Moon and the Sun
Last Answer : the Moon comes between the Sun and the Earth
Description : The mountain formed on the earth crust due to tension is called (1) Young folded mountain (2) Old folded mountain (3) Laccolith mountain (4) Block mountain
Last Answer : Block mountain
Description : The inner-most layer of the earth is known as (1) Lithosphere (2) Mesosphere (3) Asthenosphere (4) Barysphere
Last Answer : Asthenosphere
Description : The main source of usable water on the Earth is (1) Oceans (2) Rivers (3) Underground water (4) Precipitation
Last Answer : Underground water