ESS
Grade-8
Easy
Question
Select the true statement about biomass.
- It causes a reduction in CO2 emission.
- It causes air pollution on a large scale when burned.
- It consumes a large amount of water.
- All of the above
Hint:
Biomass is obtained from feedstock i.e crops, cattle. Burning these causes releases harmful gases. It is CO2 neutral.
The correct answer is: All of the above
The correct option is d)All of the above.
- Burning fossil fuels and biomass releases carbon dioxide (CO2), a greenhouse gas. However, plants, which are sources of biomass for energy production, absorb about the same amount of CO2 during growth through photosynthesis as is released when biomass is burned, making biomass a CO2-neutral energy source.
- Burning biomass releases large amounts of pollutants, just like burning other solid fuels such as coal. Combustion of organic matter releases particulate matter (PM), nitrogen oxides (NOx), carbon monoxide (CO), sulfur dioxide (SO2), lead, mercury, and other hazardous air pollutants (HAPs).
- Biomass is an umbrella term for all material streams originating from the biosphere, such as food and feed crops, energy crops, and organic wastes such as liquid fertilizers and crop residues. For biomass production, agriculture uses natural soil substrates that require the use of fresh water for plant growth.
Related Questions to study
ESS
___________ source of energy can be refilled after a short period of time.
___________ source of energy can be refilled after a short period of time.
ESSGrade-8
ESS
Select the correct statement about solar energy.
Select the correct statement about solar energy.
ESSGrade-8
ESS
____________is a disadvantage of hydropower.
____________is a disadvantage of hydropower.
ESSGrade-8
ESS
Match the following:
Match the following:
ESSGrade-8
ESS
__________are used as absorbers in solar tube collectors.
__________are used as absorbers in solar tube collectors.
ESSGrade-8
ESS
_________is not a biomass resource.
_________is not a biomass resource.
ESSGrade-8
ESS
Wind is _____________.
Wind is _____________.
ESSGrade-8
ESS
Select the correct statement.
Statement I: Non-conventional energy is free of cost.
Statement II: Non-conventional energy is exhaustible.
Select the correct statement.
Statement I: Non-conventional energy is free of cost.
Statement II: Non-conventional energy is exhaustible.
ESSGrade-8
ESS
The advantage of renewable resources is that_______________.
The advantage of renewable resources is that_______________.
ESSGrade-8
ESS
Solar cooker converts __________.
Solar cooker converts __________.
ESSGrade-8
ESS
Tidal power is____________.
Tidal power is____________.
ESSGrade-8
ESS
Solar cell converts ___________.
Solar cell converts ___________.
ESSGrade-8
ESS
_________is the energy source obtained from organic matter to make electricity.
_________is the energy source obtained from organic matter to make electricity.
ESSGrade-8
ESS
As the population grows, demand for__________.
As the population grows, demand for__________.
ESSGrade-8
ESS
What is a major problem with wind energy?
What is a major problem with wind energy?
ESSGrade-8
