General Knowledge MCQs - 29

281. Temperature generally decreases towards the poles because:
(a) Air movement is generally towards the equator
(b) Cold polar air masses prevent surface heating of the land
(c) Cold surfaces do not absorb solar energy as readily as warm surfaces
(d) Progressively lesser solar energy per unit area falls on the earth’s surface as we move to polar regions-

282. The plane of contact of the troposphere and stratosphere is known as:
(a) Mesosphere
(b) Ionosphere
(c) Stratopause
(d) Tropopause-

283. What causes snowfall?
(a) When condensation takes place below 0°C and precipitation occurs in the form of flakes-
(b) When rain freezes into snow flakes while passing through the atmosphere
(c) When condensation takes place in the form of fog and precipitation occurs as flakes
(d) When the air temperature is much lower than surface temperature

284. What is the correct sequence of the given clouds from low to high altitudes?
(a) Stratus, Cumulonimbus, Cirrostratus, Cirrus
(b) Stratus, Cirrostratus, Cumulonibus, Cirrus
(c) Cumulonimbus, Stratus, Cirrus, Cirrostratus
(d) Cumulonimbus, Stratus, Cirrostratus, Cirrus-

285. The portion of the atmosphere which extends from the earth’s surface upto 15 km and experiences decrease in temperature at constant rate is:
(a) Stratosphere
(b) Tropopause
(c) Troposphere-
(d) Ionosphere

286. Atmospheric pressure depends on:
1. Altitude        2. Temperature
3. Earth rotation  4. Moon's pull
(a) 1,2 and 3
(b) 2 and 3
(c) 1 and 2-
(d) 1 2, 3 and 4

287. Which one of the following is not a form of precipitation?
(a) Fog -
(b) Hail
(c) Snowfall
(d) Rainfall

288. Perspiration is maximum when temperature is:
(a) Low and air is dry
(b) Low and air is humid
(c) High and air is dry -
(d) High and air is humid

289. In which type of rocks are coal and petroleum found?
(a) Granite
(b) Igneous
(c) Metamorphic
(d) Sedimentary-

290. The removal of rock, layer by layer due to weathering is called:
(a) Block disintegration
(b) Dellation
(c) Exfoliation-
(d) Granular disintegration