EARTH MCQS SET 20

EARTH MCQS SET 20

1. The International Dateline deflects to a side to avoid:
(a) Society islands
(b) Hawaii
(c) Aleutian Islands
(d) All the above
Ans: (c)

2. Which of the following is/are true of world time zones?
1. The world is divided into thirty time zones
2. All time zones of the world are described in term of the number of hours difference between the standard meridian of that zone and the Greenwich Meridian
3. All countries have more than one time zone
4. The time for all places east of Greenwich is designated slow, and time for all places left of Greenwich is designated fast
(a) I, II, III and IV
(b) II and IV
(c) I, III and IV
(d) II only
Ans: (d)

3. A person sets off from Alaska on a Tuesday and reaches New Zealand the next day which will be :
(a) Tuesday
(b) Wednesday
(c) Thursday
(d) Friday
Ans: (c)
4. The local time at A is 4 p.m, when Greenwich Mean Time is 2 p.m. This indicates:
1. A is east of Greenwich
2. the longitude of A is 30°
(a) Only I
(b) Only II
(c) Neither I nor II
(d) Both I and II
Ans: (d)

5. If the earth's direction of rotation is reversed, what would be the IST when it is noon at the International Date Line?
(a) 06.30 hrs
(b) 05.30 hrs
(c) 18.30 hrs
(d) 17.30 hrs
Ans: (c)
6. Sea tides show variations because of:
(a) variations in gravitational pull of the moon
(b) variations in gravitational pull of the sun
(c) distorted spherical shape of the earth
(d) different phases of the moon
Ans: (d)
7. One day in Mumbai a tide occurs at 8.00 A.M. The next day it will occur at :
(a) 8.13 A.M.
(b) 8.26 A.M.
(c) 8.52 A.M.
(d) 8.56 A.M.
Ans: (b)

8. Which one of the following is the correct sequence of the given Continents in the decreasing order of their percentage of Earth's land?
(a) North America – Africa – South America – Europe
(b) Africa – North America – South America – Europe
(c) North America – Africa – Europe – South America
(d) Africa – North America – Europe – South America
Ans: (b)
9. Which one of the following has geographical position of 0 degree latitude and 0 degree longitude?
(a) In the South Atlantic Ocean
(b) In the Mediterranean Sea
(c) In Ghana, a West African-country
(d) At Greenwich Observatory in England
Ans: (a)
10. Match the following:
Discontinuity Layer of Earth's interior associated with discontinuity
A. Weichert - Gutenberg discontinuity 1. Outer core and inner core
B. Mohorovicic (Moho) discontinuity 2. Lower mantle and outer core
C Lehman discontinuity 3. Upper mantle and lower mantle
D. Conrad discontinuity 4. Lower crust and upper mantle
5. Division of Sial and Sima within the crust
A B C D
(a) 5 1 3 2
(b) 2 1 3 5
(c) 2 4 1 5
(d) 5 4 1 2
Ans: (c)