World Environment And Ecology MCQ Question and Answer | Geography MCQ Question

Environmental pollution is currently the biggest challenge facing the word today. Due to increase in population worid wide the untreated sewage discharge in lakes & rivers has increased. Even the garbage has increased manifold on daily basis. This was assessed during World Water Week by United Nation Environment Programme.

The method of soil conservation in which different crops are grown in alternate rows and are sown at different times to protect the soil from rain wash is called Intercropping. In inter cropping the agricultural field is utilised for growing two or more crops in a specific pattern. The benefits of it are growing more types of crops per unit agricultural land and full utilisation of nutrients available in field which otherwise can't be utilise if single crop is grown.

Tidal flat supports the growth of Mangrove Swamp. The combination of low tidal range and a climate which supports growth of vegatation tends to restrict the intertidal flats. A mangrove swamp is a distinct saline woodland or shrubland habitat formed by mangrove trees. They are characterized by depositional coastal environments, where fine sediments collect in areas protected from high-energy wave action.

The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was made in Montreal. Montreal Protocol was 1st protocol to ban the production and use of Chloro Fluoro Carbon that is responsible for Ozone depletion. It was signed on 14-16 september, 1987 & become effective from 1st January 1989.

With the rise in population, the needs and requirements of humans are rising and available land is shrinking. Hence, much of the brunt is faced by forests as human settlements are encroaching nearby forest areas.

Recharging ground water level is the benefit of rain water storage. Rain water storage is also known as rain water harvesting. The water when stored in tanks dug in ground surface seeps through the pores and recharges ground water level.

World Wildlife Fund was founded on 29 April 1961 and its first office was opened on 11 September. Its head quarter (HQ) is in Morges, Switzerland.

Global warming is caused by the emission of greenhouse gases . 72% of the totally emitted greenhouse gases is carbon dioxide (CO₂), 18% Methane and 9% Nitrous oxide (NOx). Carbon dioxide emissions therefore are the most important cause of global warming. CO₂ is inevitably created by burning fuels like e.g. oil, natural gas, diesel, organic-diesel, petrol, organic-petrol, ethanol. The emissions of CO₂ have been dramatically increased within the last 50 years and are still increasing by almost 3% each year

Hydro electric power is a renewable source of energy. It is considered a renewable energy source because the water cycle is constantly renewed by the sun.

Due to growing demand of which of the following product, tropical forest are being damaged the most Beef. International beef & trade industry is depleting tropical forest land for cattle ranching by incentivising tropical nations.