Environmental Science MCQ

Test your knowledge with important Environmental Science MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Environmental Science MCQs at Bissoy

• The range of normal human hearing is in the range of
  ক

  10 Hz to 80 Hz

  খ

  50 Hz to 80 Hz

  গ

  50Hz to 15000 Hz

  ঘ

  15000 Hz and above
• Mobile combustion accounts
  ক

  10-20% of air pollution

  খ

  40-50% of air pollution

  গ

  50-60 % of air pollution

  ঘ

  5-10 % of air pollution
• Much of Tibet lies at altitudes over 18,000 feet where the pressure is about 500 mb. At such altitudes, the Tibetans are above roughly:
  ক

  10% of the air molecules in the atmosphere

  খ

  25% of the air molecules in the atmosphere

  গ

  50% of the air molecules in the atmosphere

  ঘ

  75% of the air molecules in the atmosphere
• If water vapour comprises 3.5 percent of an air parcel whose total pressure is 1,000 mb, the water vapour pressure would be:
  ক

  1,035 mb

  খ

  35 mb

  গ

  350 mb

  ঘ

  965 mb
• Commonly used radioactive isotopes in scientific research
  ক

  14 C

  খ

  125 I

  গ

  32 P

  ঘ

  all of these
• Percentage of forest area recommended by the the national forest policy for plains is
  ক

  33%

  খ

  67%

  গ

  30%

  ঘ

  10%
• At middle latitudes, the base of an altostratus or altocumulus cloud would generally be found between:
  ক

  200 and 6,500 feet

  খ

  6,500 and 23,000 feet

  গ

  23,000 and 43,000 feet

  ঘ

  Above 43,000 feet
• Which latitude belt best describes the middle latitudes?
  ক

  20^o to 80^o

  খ

  10^o to 35^o

  গ

  20^o to 35^o

  ঘ

  40^o to 70^o

  ঙ

  30^o to 50^o
• Which year was declared as the "Water Year" by Indian government
  ক

  2010

  খ

  2004

  গ

  2007

  ঘ

  2000
• The Indian Parliament passed the Biodiversity Bill in the year_________
  ক

  2000

  খ

  2005

  গ

  2002

  ঘ

  2007
• Stratus clouds are typically puffy and form by convection.
  ক

  True

  খ

  False
• The relative humidity is often near 100 percent in the Polar Regions.
  ক

  True

  খ

  False
• To protect fruit trees from frost, it is important to keep the air as still as possible.
  ক

  True

  খ

  False
• Carbon dioxide is a naturally-occurring component of the atmosphere.
  ক

  True

  খ

  False
• Suppose two unsaturated air masses mix horizontally. The resulting mixture cannot possibly be saturated.
  ক

  True

  খ

  False
• Fog is a major hazard to aviation.
  ক

  True

  খ

  False
• Heat waves are generally considered to be little more than a nuisance and are not responsible for considerable loss of life.
  ক

  True

  খ

  False
• The horizontal extent of the ozone hole can sometimes exceed the size of the Antarctic continent.
  ক

  True

  খ

  False
• The dew point temperature is a measure of the total amount of water vapor in the air.
  ক

  True

  খ

  False
• In the northern hemisphere, north-facing hillsides have a ____ growing season than south-facing hillsides.
  ক

  Shorter

  খ

  Longer
• The geographical pattern of average air temperature near sea level is ____ homogeneous in the southern hemisphere as compared to the northern hemisphere.
  ক

  Less

  খ

  More
• In the figure below, energy is being transported ____.
  ক

  Upward

  খ

  Downward
• All oil traps contain
  ক

  an impermeable layer

  খ

  an anticline

  গ

  a fault

  ঘ

  syncline
• What is meant by root zone process?
  ক

  A control measure to prevent water pollution

  খ

  A process by which roots of plants are spread on the ground

  গ

  A control measure to prevent soil pollution

  ঘ

  None of these
• Where cold surface air replaces warm air, the boundary separating the different bodies of air is:
  ক

  A parallel of latitude

  খ

  A tornado

  গ

  A cold front

  ঘ

  A warm front
• The air temperature is 45^o F, the wind is blowing at 30 MPH, and the wind chill temperature is 15^o F. These conditions would be equivalent to:
  ক

  A 15^o F air temperature and 0 MPH winds

  খ

  A 30^o F air temperature and 45 MPH winds

  গ

  A 30^o F air temperature and 15 MPH winds

  ঘ

  A 15^o F air temperature and 30 MPH winds
• The mean of annual rainfall in India is
  ক

  110 mm

  খ

  110 cm

  গ

  85 cm

  ঘ

  110 m
• The ocean covers ________ percentage of Earth's surface.
  ক

  51%

  খ

  61%

  গ

  71%

  ঘ

  91%
• At which temperature would the earth be radiating energy at the greatest rate or intensity?
  ক

  -5^o F

  খ

  -40^o F

  গ

  60^o F

  ঘ

  32^o F

  ঙ

  105^o F
• World Forest day is celebrated on
  ক

  21st March

  খ

  5th June

  গ

  1st Dec

  ঘ

  7th June