Earth's energy budget - class-VIII

earth's energy budget

45 Questions Published

Questions

Question 1 Multiple Choice (Single Answer)

Water evaporates into air from oceans, rivers and lakes but not from the soil.

  1. True
  2. False
Question 2 Multiple Choice (Single Answer)

Identify the forms of precipitation.

  1. Rain
  2. Snow
  3. Hail
  4. All of the above
Question 3 Multiple Choice (Single Answer)

Which of the following process in the water cycle takes place due to rapid cooling of air?

  1. Condensation
  2. Evaporation
  3. Precipitation
  4. None of the above
Question 4 Multiple Choice (Single Answer)

Identify the correct sequence of stages in the water cycle.

  1. Evaporation, condensation, precipitation
  2. Condensation, precipitation, evaporation
  3. Evaporation, precipitation, condensation
  4. Precipitation, evaporation, condensation
Question 5 Multiple Choice (Single Answer)

Which of the following is an advantage of occurrence of the water cycle? 

  1. Recharging of ground water
  2. Recharging of water bodies
  3. Sufficient rainfall
  4. All of the above
Question 6 Multiple Choice (Single Answer)

Which of the following process is responsible for the smoke-like vapour which comes out of the mouth in winter?

  1. Precipitation
  2. Evaporation
  3. Condensation
  4. None of the above
Question 7 Multiple Choice (Single Answer)

The water vapour which enters into air to form clouds in the sky are obtained by which of the following process?

  1. Condensation
  2. Evaporation
  3. Precipitation
  4. None of the above
Question 8 Multiple Choice (Single Answer)

Fog that most often forms as warm rain falls into a cold layer of surface air is called:

  1. Radiation fog
  2. Evaporation (mixing) fog
  3. Advection fog
  4. Upslope fog
Question 9 Multiple Choice (Single Answer)

When water changes from a liquid to a vapor, we call this process:

  1. Freezing
  2. Condensation
  3. Sublimation
  4. Evaporation
Question 10 Multiple Choice (Single Answer)

The processes of condensation and freezing:

  1. Both release sensible heat into the environment
  2. Both absorb sensible heat from the environment
  3. Do not affect the temperature of their surroundings
  4. Do not involve energy transport
Question 11 Multiple Choice (Single Answer)

Evaporation is a _____________ process.

  1. Cooling
  2. Heating
  3. Can't tell - it depends on the temperature
  4. Both a and c
Question 12 Multiple Choice (Single Answer)

When the air temperature is below freezing, the saturation vapor pressure over water is.

  1. Equal to zero
  2. Less than the saturation vapor pressure over ice
  3. Greater than the saturation vapor pressure over ice
  4. Equal to the saturation vapor pressure over ice
Question 13 Multiple Choice (Single Answer)

What would be temperature of gaseous hydrocarbon in condensation?

  1. Higher temperature
  2. Lower temperature
  3. Normal temperature
  4. Extremely high temperature
Question 14 Multiple Choice (Single Answer)

What dissolved gases in atmosphere during water falling?

  1. Evapo-transpiration
  2. Condensation
  3. Precipitation
  4. Transpiration
Question 15 Multiple Choice (Single Answer)

The opposite of evaporation is

  1. Transpiration
  2. Condensation
  3. Precipitation
  4. Freezing
Question 16 Multiple Choice (Single Answer)

The continuous process by which water moves from form to another is called as

  1. Condensation
  2. Water cycle
  3. Nutrient cycle
  4. None of the above
Question 17 Multiple Choice (Single Answer)

A glass of water with some pieces of ice in it, after some time, small drops of water forms on the outer surface of the glass. This process is called as

  1. Evaporation
  2. Precipetation
  3. Condensation
  4. None of the above
Question 18 Multiple Choice (Single Answer)

Drying of wet clothes is done by the process of condensation.

  1. True
  2. False
Question 19 Multiple Choice (Single Answer)

The rate of evaporation depends on

  1. Temperature
  2. Volume of water
  3. Wind movement
  4. All of the above
Question 20 Multiple Choice (Single Answer)

Water cycle refers to

  1. Scientific management of water in areas excessively plagued with water logging.
  2. Constant movement of water from ocean to land and back to ocean again
  3. An integrated attempt to recycle water in relatively arid regions
  4. Planning of water distribution in relatively dry areas.
Question 21 Multiple Choice (Single Answer)

Condensation nuclei may be:

  1. Particles of dust
  2. Nitric acid particles
  3. Smoke from forest fires
  4. All of these
Question 22 Multiple Choice (Single Answer)

The total mass of water vapor stored in the atmosphere at any moment is about ____________ of the world's supply of precipitation.

  1. 1 day
  2. 1 week
  3. 1 month
  4. 1 year
Question 23 Multiple Choice (Single Answer)

All forms of water that comes down on Earth, including rain, snow, hail etc. is known as ____________

  1. Calcification
  2. Fixation
  3. Precipitation
  4. Accumulation
Question 24 Multiple Choice (Single Answer)

What causes gases to dissolve in atmosphere?

  1. Transpiration
  2. Precipitation
  3. Condensation
  4. Filtration
Question 25 Multiple Choice (Single Answer)

Water enters atmosphere by

  1. Filtration
  2. Evaporation
  3. Evapo-transpiration
  4. Biosphere
Question 26 Multiple Choice (Single Answer)

What type of reactions occurring inside the sun produced solar energy?

  1. nuclear fusion reactions
  2. nuclear fission reactions
  3. nucleophilic substitution reactions
  4. electrophilic addition reactions
Question 27 Multiple Choice (Single Answer)

The main source of all types of energy on  the Earth is :

  1. Coal
  2. Moon
  3. Petroleum
  4. Sun
Question 28 Multiple Choice (Single Answer)

The Sun gives us ________ and _________ energy.

  1. sound, light
  2. heat, sound
  3. heat, light
  4. light, wind
Question 29 Multiple Choice (Single Answer)

The ultimate source of heat on the surface of the earth is

  1. Solar energy
  2. Radiation energy
  3. Nuclear energy
  4. Inner temperature of the Earth's crust
Question 30 Multiple Choice (Single Answer)

Sun is regarded as the ultimate source of energy because

  1. It is the most readily & abundantly available free renewable source of energy
  2. The amount of solar energy received by the earth per hour is much more greater than the total energy consumed by the world each year
  3. The energy derived from different sources is directly or indirectly obtained from sun.
  4. All of the above
Question 31 Multiple Choice (Single Answer)

The existence of life on Earth is primarily due to

  1. the formation of fossil fuels on Earth.
  2. the energy from the Sun.
  3. the revolution of Earth around the Sun.
  4. the evolution of species.
Question 32 Multiple Choice (Single Answer)

Which of the following appliances use solar energy?
a. Water heater
b. Cooker
c. Cells
d. Watches

  1. A and C
  2. A, B and C
  3. C and D
  4. All of the above
Question 33 Multiple Choice (Single Answer)

Choose the correct option:

  1. Energy from Sun allows us to see stars.
  2. Sun is the prime source of energy in the universe.
  3. Energy from fossil fuels is primarily derived from solar energy.
  4. Earth rotates around the Sun due to the heat energy from the Sun.
Question 34 Multiple Choice (Single Answer)

The main source of all types of energy on the Earth is :

  1. coal
  2. moon
  3. petrolium
  4. sun
Question 35 Multiple Choice (Single Answer)

Which is the ultimate source of energy?

  1. Water
  2. Sun
  3. Uranium
  4. Fossil fuels
Question 36 Multiple Choice (Single Answer)

Energy from various sources is considered to have been derived from the :

  1. Moon
  2. Solar system
  3. Sun
  4. Stars
Question 37 Multiple Choice (Single Answer)

The main source of heat is

  1. The sun
  2. The stars (Excluding the sun)
  3. The interior of the earth
  4. Chemical reactions
  5. Electricity
Question 38 Multiple Choice (Single Answer)

The temperature of core of the sun is in the range of

  1. ${1,56,000}^{o}C$
  2. ${15,60,000}K$
  3. ${15,60,000}^{o}C$
  4. $1,56,00,000K$
Question 39 Multiple Choice (Single Answer)

Sun produces heat and light energy by

  1. nuclear fusion of hydrogen atoms into helium atoms
  2. nuclear fission of ${H} _{2}$ atoms into helium atoms
  3. nuclear fission of $He$ atoms into ${H} _{2}$ atoms
  4. nuclear fusion of $He$ atoms into ${H} _{2}$ atoms
Question 40 Multiple Choice (Single Answer)

Sun contains more than __________ of the total mass of the solar system.

  1. $90$%
  2. $65$%
  3. $46$%
  4. $99.8$%
Question 41 Multiple Choice (Single Answer)

Sun loses approximately a weight of ________ every second which is the amount of ${H} _{2}$ gas that the sun turns into energy.

  1. $4$ lakh million tons
  2. $4$ million tons
  3. $4$ lakh tons
  4. $40$ lakh tons
Question 42 Multiple Choice (Single Answer)

The correct order of spatial location of different layer of sun are

  1. core-radiative zone-convective zone-photosphere-chromosphere-transition region
  2. core-convective zone-chromosphere-photosphere-radiative zone
  3. core-convective zone-photosphere-chromosphere-convective zone-radiative zone
  4. core-radiative zone-convective zone-chromosphere-convective zone-photosphere
Question 43 Multiple Choice (Single Answer)


Most of the sources of energy we use represent stored solar energy. Which of the following is not ultimately derived from the Sun's energy?

  1. Geothermal energy
  2. Wind Energy
  3. Nuclear energy
  4. BioMass
Question 44 Multiple Choice (Single Answer)

The sun radiates electromagnetic energy at the rate of $3.9 \times 10^{26}W$. Its radius is $6.96\times 10^8m$.The intensity of sun light at the solar surface will be $-(in , W/m^2)$

  1. $1.4 \times 10^4$
  2. $2.8 \times 10^5$
  3. $4.2 \times 10^6$
  4. $5.6 \times 10^7$