General Physical Geography Test 7

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General Physical Geography Test 7

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Weekly Quiz Competition

Question 1
1 / -0

Nearly 30% of the solar radiations return back to the space without contributing anything to the Earth's surface temperature. This amount of radiation is known as ________.

A
solar insolation

B
tropopause

C
earth's albedo

D
mesopause

Solution

Albedo is a measure of reflection of solar radiation out of the total solar radiation incident on a body. It is measured on a scale of 0 to 1. Earth's albedo is about 0.30, which means it reflects almost 30% of the solar radiation incident on it.
Question 2
1 / -0

The 'Blue Moon' phenomenon occurs ___________.

A
when two full Moons occur in the same month

B
when four full Moons appear in two consecutive months of the same calendar year

C
when two full Moons appear in the same month thrice in a calendar year

D
None of the above

Solution

There are 12 full moons most years but every two or three years there is an extra full moon which is called a “Blue moon”. Blue moon basically refers to an additional full moon observed in a given period of time.
Question 3
1 / -0

We always see the same face of the Moon, because _______.

A
It is smaller than the Earth.

B
It revolves on its axis in a direction opposite to that of the Earth.

C
It takes equal time for revolution around the Earth and rotation on its own axis.

D
It rotates at the same speed as the Earth around the Sun.

Solution

It takes approximately 27 days for the moon to complete 1 revolution around the earth and it takes the same amount of time for it to complete 1 rotation on its own axis. As a result of this, we always see the same face of the moon.
Question 4
1 / -0

A person stood alone in a desert on a dark night and wanted to reach his village, which was situated 5 km East of the point where he was standing. He had no instruments to find the direction, but he located the pole-star. The most convenient way now to reach his village is to walk in the _______.

A
direction facing the pole-star

B
direction opposite to the pole-star

C
direction keeping the pole-star to his left

D
direction keeping the pole-star to his right

Solution

Pole star's position with respect to rotating earth never changes and it always points to the north direction. Thus, if the person keeps the pole star to his left, he can be sure of walking in the eastern direction in which his village is located. Polestar was used widely for navigation in ancient and medieval times due to its stable position.
Question 5
1 / -0

Satellites used for telecommunication relay are kept in geostationary orbit. A satellite is said to be in such an orbit when ___________.
(1) the orbit is geosynchronous
(2) the orbit is circular
(3) the orbit lies in the plane of the Earth's equator
(4) the orbit is at an altitude of 22236 km
Select the correct answer using the codes given below.

A
1, 2 and 3

B
1, 3 and 4

C
2 and 4

D
All of the above

Solution

A geostationary orbit is a circular geosynchronous orbit in which the satellite is placed at an altitude of approximately 35786 km above mean sea level. The orbit lies in the plane of the Earth's equator. An object in such an orbit has an orbital period equal to earth's rotational period and thus appears motionless.
Question 6
1 / -0

Which one of the following combinations of stalactites and stalagmites occurrences is correct?

A
Stalactites hang as icicles of different diameters and stalagmites hang from the floor of the caves.

B
Stalactites hang an icicles of different diameters and stalagmites rise up from the floor of the caves.

C
Stalactites rise up from the floor of the caves and stalagmites hang as icicles of different diameters.

D
Stalactites hang as icicles of different diameters and stalagmites also hang as icicles of different diameters.

Solution

Stalactites and stalagmites are both rock formations which may be composed of minerals, lava, pitch, sand etc. Stalactites hang as icicles from the ceilings of the caves and may be of different diameters. Stalagmites rise from the floor of the caves and are formed due to accumulation of material dropped from the stalactites.
Question 7
1 / -0

The greatest seasonal contrast of insolation on the Earth is in which of the following latitudinal zones?

A
Equatorial

B
Tropical

C
Temperate

D
Polar

Solution

The greatest seasonal contrast of insolation is seen in polar zone due to the inclination of 23.5 degrees of the earth's rotation axis with respect to its orbital axis. Sun rays are directly overhead on Tropic of Cancer during the month of June and on Tropic of Capricorn during the month of December. Poles experience 24 hour days during summer and 24 hour nights during winters, thus experiencing maximum variation among all the regions on earth.
Question 8
1 / -0

Chilika Lake is situated in:

A
Punjab

B
Assam

C
Tamil Nadu

D
Odisha

Solution

Chilika lake is brackish water lagoon , spread over the Puri , Khurda and Ganjam districts of Odisha state on the wast coast of India , at the mouth of the Daya River , flowing into the Bay of Bengal , covering an area of over $$1,100 Km^2$$.
Question 9
1 / -0

The inexhaustible source of energy of the stars is due to ____________.

A
conversion of hydrogen to helium

B
conversion of helium to hydrogen

C
decay of radioactive elements

D
excess of oxygen that helps burning and release of energy

Solution

Stars are like giant nuclear reactors in which fusion processes lead to release of a lot of energy which is responsible for the hotness and brightness of the stars. During fusion, smaller hydrogen nuclei combine to form bigger helium nuclei.
Question 10
1 / -0

Consider the following statements:
(1) The Earth receives the Sun's energy at the infrared end of the Spectrum.
(2) The Earth re-radiates the Sun's heat as ultraviolet energy.
Which of the statements given above is/are correct?

A
Only 1

B
Only 2

C
Both 1 and 2

D
Neither 1 nor 2

Solution

The incoming radiation from the Sun onto the earth is mainly in the form of visible sunlight, while a smaller percentage can also be in higher energy ultraviolet range and also lower energy infrared range. Much of the ultraviolet radiation is absorbed by the ozone layer in the stratosphere.

The radiation emitted by earth is in the infrared range as the temperature of earth is much cooler than Sun and thus the emitted radiation is lower in energy than the incoming one.

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General Physical Geography Test 7

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General Physical Geography Test 7

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SHARING IS CARING

Question 1

solar insolation

tropopause

earth's albedo

mesopause

Solution

Question 2

when two full Moons occur in the same month

when four full Moons appear in two consecutive months of the same calendar year

when two full Moons appear in the same month thrice in a calendar year

None of the above

Solution

Question 3

It is smaller than the Earth.

It revolves on its axis in a direction opposite to that of the Earth.

It takes equal time for revolution around the Earth and rotation on its own axis.

It rotates at the same speed as the Earth around the Sun.

Solution

Question 4

direction facing the pole-star

direction opposite to the pole-star

direction keeping the pole-star to his left

direction keeping the pole-star to his right

Solution

Question 5

1, 2 and 3

1, 3 and 4

2 and 4

All of the above

Solution

Question 6

Stalactites hang as icicles of different diameters and stalagmites hang from the floor of the caves.

Stalactites hang an icicles of different diameters and stalagmites rise up from the floor of the caves.

Stalactites rise up from the floor of the caves and stalagmites hang as icicles of different diameters.

Stalactites hang as icicles of different diameters and stalagmites also hang as icicles of different diameters.

Solution

Question 7

Equatorial

Tropical

Temperate

Polar

Solution

Question 8

Punjab

Assam

Tamil Nadu

Odisha

Solution

Question 9

conversion of hydrogen to helium

conversion of helium to hydrogen

decay of radioactive elements

excess of oxygen that helps burning and release of energy

Solution

Question 10

Only 1

Only 2

Both 1 and 2

Neither 1 nor 2

Solution

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