Which of the following is a solid waste pollutant?

• Bottle
• Glass jar
• Plastic container
• All of these

The phenomenon of lowering the quality of land is called

• Land degradation
• Desertification
• Soil erosion
• All the above

Lithosphere includes

• Water
• Gases
• Soil
• Minerals

Drying of rivers, lakes and reservoirs leads to

• Agricultural drought
• Meteorological drought
• Hydrological drought
• All the above

Which of the following is responsible for desertification

• Deforestation
• Overgrazing
• Mining
• All of the above

Following is one of the non-renewable energy resource

• Firewood
• Animal dung
• Nuclear power
• Geothermal energy

Most of the fresh water on land is in the form of

• Oceans
• Seas
• Lakes
• Polar ice caps

The following is one of the metallic mineral

• Lime
• Diamond
• Lead
• Gypsum

An aquifer is a word used to describe

• Ground water
• Surface water
• Marine water
• Fresh water

Phosphorus is a ________ mineral

• Metallic
• Non-metallic
• Fuel
• None

Which one of the following is not an ideal solution for tackling the water crisis

• Drilling large number of deep bore wells
• Population growth control
• Water conservation in irrigation
• Water pollution control

Water logging results in

• Fertile soils
• More greenery
• Less dissolved salts
• None

The sum total of all the ecosystems on planet earth is called

• Atmosphere
• Hydrosphere
• Biosphere
• Lithosphere

According to 10% rule if an organism has taken food of 100 kcal, how much of it would be transferred to next trophic level

• 90 kcal
• 10 kcal
• 100 kcal
• 0 kcal

The increase in the amount of non-biodegradable elements while moving from one trophic level to another is called as

• Bioremediation
• Eutrophication
• Biodegradation
• Biomagnification

In an ecosystem the flow of energy is

• Bidirectional
• Cyclic
• Unidirectional
• Multidirectional

The pyramid of number is inverted in

• Cropland ecosystem
• Forest ecosystem
• Grassland ecosystem
• Pond ecosystem

The term �ecosystem� was proposed by British ecologist

• Lindeman
• Tansley
• Whittaker
• Elton

The ecosystems that are found on land are called

• Aquatic
• Diurnal
• Terrestrial
• Nocturnal

The process of successful establishment of the species in an area as a result of conditions prevailing there is known as

• Nudation
• Migration
• Ecesis
• Invasion