Greenhouse gases act similarly to the glass in a greenhouse: they absorb the sun's heat that radiates from the Earth's surface, trap it in the atmosphere and prevent it from escaping into space.

 

How is the greenhouse effect related to global warming?

The greenhouse effect keeps the Earth's temperature warmer than it would otherwise be, supporting life on Earth.

Class 12 Biology Practice Test: Environmental Issues - Greenhouse Effect and Global Warming

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11 Questions

1. What does the increase in the level of greenhouse gases lead to?

Global warmingNo change in ecosystem cyclesProper rainfallProper plant growth

2. What helps in warming the greenhouse?

HeatLightEnergyPlants

3. Which one of the following ways can be used to control global warming?

Increasing the growth of human populationIncreasing deforestationPlanting treesIncreasing the use of fossil fuel

4. Which one of the following ways can be used to control global warming?

Reducing efficiency of energy usageIncreasing the growth of human populationIncreasing deforestationReducing the use of fossil fuel

5. Which gases are commonly known as greenhouse gases?

OxygenNitrogenChlorineCarbon dioxide

6. From which phenomenon is the term ‘Greenhouse effect’ derived?

That occurs in a boathouseThat occurs in a houseThat occurs in a blue houseThat occurs in a greenhouse

7. In a greenhouse the glass panel lets the light in, but what is not escaped?

AirEnergyLightHeat

8. The given diagram shows the contribution of greenhouse gases. Which gas contributes a minimum to the greenhouse effect?

MethaneCarbon dioxideNitrous oxideCFC

9. The given diagram shows the contribution of greenhouse gases. Which gas contributes maximum to the greenhouse effect?

MethaneCarbon dioxideCFCNitrous oxide

10. Which naturally occurring phenomenon is responsible for heating of Earth’s surface and atmosphere?

Greenhouse effectBio-magnificationEutrophicationCooking

11. What is a small glasshouse used for growing plants especially during winter called?

BoathouseTreehouseLakehouseGreenhouse