Question 1

The largest ecosystem of the Earth is ___________.

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Question 2

Match the following.List I(Original)List II(Metamorphic Rock)(A) Basalt(1) State(B) Coal(2) Schist(C) Limestone(3) Marble(D) Shale(4) Diamond

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Question 3

Which one of the following describes the Lithosphere?

Accepted Answer

Lithosphere is the rigid, rocky outer layer of the earth, consisting of the crust and the solid outermost layer of the upper mantle. It extends to a depth of about 100 km. It is broken into about a dozen separate, rigid blocks, or plates. The lithosphere is underlain by the asthenosphere which is the weaker, hotter, and deeper part of the upper mantle.

Question 4

Which of the following statements is/are correct?
1. The tropical cyclones of China Sea are called typhoons.
2. The tropical cyclones of the West Indies are called tornadoes.
3. The tropical cyclones of Australia are called willy-willies.
4. Formation of an anticyclone results in stormy weather condition.
Select the correct answer using the code given below.

Accepted Answer

Hurricanes, cyclones, tornadoes are different names for same phenomena of large scale air mass rotating around a strong center of low atmospheric pressure. They have different names in different regions as below:Australia - Willy-WillyChina Sea - Typhoonscoastal US - TornadoesCarribean Sea - Hurricanes

Question 5

A balanced ecosystem is one in which the ______________.

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Question 6

What do you mean by monsoon?

Accepted Answer

The word 'Monsoon' owes its origin to an Arabic word 'Mausim' meaning season. The winds which reverse their directions completely between the summer and the winter are known as Monsoon winds.

Question 7

Statement I : Ozone is a tri-atomic molecule of oxygen.

Accepted Answer

Statement II : Ozone is concentrated mainly in stratosphere.

Question 8

Consider the following statements:1. The doldrums is a low pressure area around the Equator where the prevailing winds are calm.2. Chinook is a hot and dry wind that blows in winter and therefore raises the temperature in a short time.Which of the statements given above is/are correct?

Accepted Answer

Doldrums, also called equatorial calms, are equatorial regions of light ocean currents and winds within the intertropical convergence zone (ITCZ), a belt of converging winds and rising air encircling Earth near the Equator. They occur along the Equator in the Indian and western Pacific oceans and slightly north of the Equator off the African and Central American west coasts. Chinook winds, or simply Chinooks, are f&#246;hn winds in the interior West of North America, where the Canadian Prairies and Great Plains meet various mountain ranges, although the original usage is in reference to wet, warm coastal winds in the Pacific Northwest.

Question 9

Consider the following statements about Roaring Forties :
1. They are strong Westerly winds found in the oceans of Southern Hemisphere.
2. The strong east to west air currents are caused by the combination of air being displaced from the Equator towards the South Pole and the earth's rotation and abundance of landmasses to serve as wind breaks.
Which of the statements given above is/are correct ?

Accepted Answer

The Roaring Forties are strong westerly winds found in the Southern Hemisphere, generally between the latitudes of 40 and 50 degrees. The strong west-to-east air currents are caused by the combination of air being displaced from the Equator towards the South Pole, the Earth's rotation, and the scarcity of landmasses to serve as windbreaks. The Roaring Forties were a major aid to ships sailing the Brouwer Route from Europe to the East Indies or Australasia during the Age of Sail, and in modern usage are favored by yachtsmen on round-the-world voyages and competitions.

Question 10

Which one of the following is a local wind that blows out  from Siberia?

Accepted Answer

Purga is a violent cold wind blowing in Russian tundra region.Bora is a cold and dry wind blowing outwards from Hungary to the north of Italy in the upper Adriatic Sea.Mistral is a cold wind blows in Rhone valley of France.Blizzard is a storm or wind which contains large amounts of snow and blows in Tundra region.

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Climate and Different Climatic Conditions

Weather and Climate

Seasons on Earth

Structure of the atmosphere

The largest ecosystem of the Earth is ___________.

Match the following.
List I
(Original) List II
(Metamorphic Rock)
(A) Basalt (1) State
(B) Coal (2) Schist
(C) Limestone (3) Marble
(D) Shale (4) Diamond

Which one of the following describes the Lithosphere?

A balanced ecosystem is one in which the ______________.

What do you mean by monsoon?

Statement I : Ozone is a tri-atomic molecule of oxygen.

Statement II : Ozone is concentrated mainly in stratosphere.

Consider the following statements:
1. The doldrums is a low pressure area around the Equator where the prevailing winds are calm.
2. Chinook is a hot and dry wind that blows in winter and therefore raises the temperature in a short time.
Which of the statements given above is/are correct?

Which one of the following is a local wind that blows out from Siberia?

List I (Original)	List II (Metamorphic Rock)
(A) Basalt	(1) State
(B) Coal	(2) Schist
(C) Limestone	(3) Marble
(D) Shale	(4) Diamond