Top 150+ Solved The Earth MCQ Questions Answer
Q. The speed of rotation of the earth is: [IFS 1991]
a. 25 km/sec.
b. 31 km/sec.
c. 39.5 km/se
d. 9.72 km/sec.
Q. The point in the orbit of a moon that is farthest from the Earth and at which the moon'svelocity is at a minimum, the known as:
a. Apehelion
b. Apigee
c. Umbra
d. Perihelion
Q. Which of the following is not an effect produced by rotation of earth?
a. It causes days and nights
b. All heavenly bodies like sun, moon, planets appear to move from East to West
c. Winds change their directions
d. Poles have days and nights of 6 months duration
Q. The revelations of a satellite photograph of the earth are as follows: 1. the Southern hemisphere bulges slightly more than the Northern hemisphere 2. it is slightly pear shaped ellipsoid of rotation 3. the polar axis of the earth is slightly shorter than the equatorial axis 4. the equatorial circumference is about 40,000km Which of the above statements are correct ?
a. 1, 2 and 3
b. 1, 2, 3 and 4
c. 1, 2 and 4
d. 2, 3 and 4
Q. Albedo is defined as:
a. UV radiations sent out by the SUN
b. a substance contained in the upper atmospheric layers of the earth, which is responsible for the reflection of/a part of solar radiations
c. celestial bodies in earth's atmosphere which add to the greenhouse effect
d. the amount of insolation reflected back to the space by the top of atmosphere, by clouds and ice-covered areas of the Earth's surface
Q. The Sun shines vertically on the equator:
a. throughout the year
b. for six months
c. twice a year
d. once a year
Q. The position of the sun is annually twice overhead at Singapore because of the:[Railways 1993]
a. rotation of the earth
b. revolution of the earth
c. elliptical path of the earth's orbit
d. parallelism of inclined axis of the earth
Q. What is 'Siderial Day'?
a. The day on which the duration of sunshine is the maximum
b. The day on which the duration of sunshine and darkness are equal
c. The time during which the earth makes a complete rotation on its axis in respect of the fixed stars
d. The day on which the sun reaches its maximum distance from the equator
Q. The distance between the earth and the sun is smallest in the month of:
a. January
b. March
c. June
d. September
Q. The earth revolves round the sun in its orbit by approximately:
a. 1° per day
b. 2° per day
c. 3° per day
d. 5° per day
Q. There is a continual daylight or summer in the Arctic regions from:
a. 22nd December to 21st March
b. 21st March to 21st June
c. 21st March to 23rd September
d. 21st June to 22nd December
Q. Antipodes are:
a. lines joining places having a time difference of 12 hours
b. places diametrically opposite on earth's surface
c. places located at a point where degree of latitude is equal to degree of longitude
d. lines joining places having the same depths
Q. Which of the following pairs of metals are supposed to constitute the internal core ofthe earth?
a. Chromium and Iron
b. Magnesium and Lead
c. Iron and Copper
d. Nickel and Iron
Q. Consider a specific point on the surface of the earth (say Delhi). The temperature at a given time of day (say 12.00 Noon) will in general be higher in summer than in winter. This is because: [IAS 1993]
a. the evaporation of water from atmosphere results in precipitation occurring in winter alone
b. Sun-rays falling on the earth are inclined more towards the sun in winter
c. the earth is closer to the sun in summer than in winter
d. the axis of the earth is inclined more towards the sun in winter
Q. Who among the following was first to measure the circumference of the Earth? [NDA2008]
a. Eratosthenes
b. Aristotle
c. Hecataeus
d. Herodotus