Natural resourses of Bangladesh

Name TWO natural renewable resources which can be used to produce electricity.

• Coal and gas

• Gas and oil

• Sunlight and wind

• Biomass and water

Why the natural resources have to be carefully managed?

• If depleted , cant be renewed.

• If lost, production cost of electricity will increase.

• It,s a political issue

• we don't need to worry

Which on of the following is not an importance of forest in Bangladesh

• Maintain ecological balance

• Shelter innumerable species of organisms, plants and animals

• Provide products for consumption by humans and animals

• A residential area for Human only

Wood can be substituted by

(a)  

Biogas digester is producing continuous gas and the left over ................ can be used as fertilizers

• gas

• slurry

• paste

• algae

What are the problems of associated with marine fishing

• need to invest more to start business

• Cannot go deep into the sea so they limited to coastal fishing

• marine season is limited because of the natural calamities

• low cost craft used by unskilled workers

Why Bay of Bengal is suitable for marine fishing?

• Less or no ocean current to wash away the nutrients

• The mixing of fresh water from river and saline water

• Looks nice

• suitable temperature and availability of oxyzen

What features needed to set up HEP plant in Bangladesh?

• Hilly topography

• low flow of river water

• Wind speed

• no rainfall

What can be used in Biogas digester to produce biomethane?

• Life stock waste

• Crops

• Food waste

• Water hyacinth

(a)   can be a great alternative to traditional crop production