CBSE Questions for Class 7 Biology Weather Climate And Adaptations Of Animals To Climate Quiz 4 - MCQExams.com

Climate of Mumbai can be defined as 
  • Wet and Dry
  • Hot and Wet
  • Hot and Humid
  • None of the above
The rapid extinction of species in the tropical countries is primarily due to ____________.
  • Climatic changes
  • Increased pollution
  • Intensive agriculture
  • Population explosion
At what time of the day is the relative humidity normally at a minimum?
  • When the air temperature is highest
  • Just before sunrise
  • About midnight
  • When the air temperature is lowest
During winters sometimes the body shows shivering, this is in order to 
  • Increase heat production by muscular contraction
  • Increase heat production by muscular friction
  • Check dispersion of body heat
  • Increase quantity of blood in skin
If the sun suddenly began emitting more energy, the earth's radiative equilibrium temperature would:
  • Increase
  • Decrease
  • Remain the same
  • Begin to oscillate
The atmosphere near the earth's surface is "heated from below." Which of the following does not significantly contribute to this heating?
  • Conduction of heat upward from a hot surface
  • Convection from a hot surface
  • Absorption of infrared energy that has been radiated from the surface
  • Heat energy from the earth's interior
In summer, humid regions typically have _________ daily temperature ranges and _____________ maximum temperatures than drier regions.
  • Smaller, lower
  • Smaller, higher
  • Larger, lower
  • Larger, higher
When clouds are viewed near the horizon, the individual cloud elements usually:
  • Appear closer together than is actually the case
  • Appear farther apart than is actually the case
  • Appear lighter in color than is actually the case
  • Appear to have more vertical development than is actually the case
To some extent viability of pollen grains depends on prevailing temperature and humidity.
  • True
  • False
If very cold air is brought indoors and warmed with no change in its moisture content, the saturation vapor pressure of this air will __________ and the relative humidity of this air will ___________ .
  • Increase, increase
  • Decrease, decrease
  • Increase, decrease
  • Decrease, increase
____________ is one of the most endangered species of Indian birds
  • Bee eater
  • Paradise fly catcher
  • Owl
  • The great Indian bustard
The term "normal" refers to weather data averaged over:
  • At least a day.
  • Several months.
  • One year.
  • Thirty years.
Almost all of the earth's weather occurs in the:
  • Exosphere
  • Stratosphere
  • Mesosphere
  • Troposphere
Our seasons are caused by:
  • The changing distance between the earth and the sun
  • The angle at which sunlight reaches the earth
  • The length of the daylight hours
  • Only (b) and (c) are correct
Why the climate of the northeast India is wet?
  • The region recieves rain for a major part of the year.
  • The region is hot for a major part of the area.
  • The region remains cloudy for a major part of the year.
  • The region remains humid for a major part of the year.
The global temperature has risen by about _____________ degree Celsius, since the peak of last glacialisation.
  • 10
  • 7
  • 8
  • 5
Which of the following will decrease in a rising parcel of air?
  • Relative humidity
  • Absolute humidity
  • Specific humidity
  • All of the above
The percentage of water vapor present in the air compared to that required for saturation is the:
  • Mixing ratio
  • Absolute humidity
  • Dew point
  • Relative humidity
The instrument that measures temperature, pressure, and humidity at various altitudes in the atmosphere:
  • Barograph
  • Radiosonde
  • Aneroid barometer
  • Altimeter
Hypothermia is most common in:
  • Hot, humid weather
  • Cold, wet weather
  • Hot, dry weather
  • Cold, dry weather
The cold feeling that you experience after leaving a swimming pool on a hot, dry, summer day represents heat transfer by:
  • Conduction
  • Convection
  • Radiation
  • Latent heat
The temperature scale where 0o represents freezing and $$100^{o}$$ boiling :
  • Fahrenheit
  • Celsius
  • Kelvin
  • Absolute
In the northern hemisphere, the number of hours of daylight begin to shorten after the
  • Spring equinox
  • Summer solstice
  • Autumn equinox
  • Winter solstice
Which of the following statements is not correct?
  • The length of human hair changes as the relative humidity changes.
  • During the winter, low relative humidity can irritate the mucus membranes in the nose and throat.
  • The relative humidity is a measure of the air's actual water vapor content.
  • A change in the air temperature can change the relative humidity.
Which of the following weather elements always decreases as we climb upward in the atmosphere?
  • Wind
  • Temperature
  • Pressure
  • Moisture
If the air temperature increased, with no addition or removal of water vapor, the actual vapor pressure would:
  • Increase
  • Decrease
  • Stay the same
  • Become greater than the saturation vapor pressure
The density of water vapor in a given parcel of air is expressed by the:
  • Absolute humidity
  • Relative humidity
  • Mixing ratio
  • Specific humidity
If the air temperature remains constant, evaporating water into the air will ____________ the dew point and ___________ the relative humidity.
  • Increase, increase
  • Increase, decrease
  • Decrease, increase
  • Decrease, decrease
Meteorology is considered a branch of:
  • Mineralogical sciences
  • Phenology
  • Phrenology
  • Atmospheric sciences
Climate includes
  • Seasonal variation
  • General patterns of atmosphere conditions
  • Average weather of an area
  • All of these
0:0:1


Answered Not Answered Not Visited Correct : 0 Incorrect : 0

Practice Class 7 Biology Quiz Questions and Answers