All Questions page - 472

Which one is not a non-conventional energy source

(1) Nuclear energy

(2) Solar Energy

(3) Wind energy

(4) Tidal power

The Montreal Protocol 1987 refers to

(1) saving the Bio-diversity of our planet

(2) signing of an accord on the peaceful uses of atomic energy

(3) signing of an accord on keeping Antarctica as a nuclear-free zone

(4) saving the ozone layer from destruction by reducing the use of CFCs

Trees are leafless for a shorter or longer season of the year in :

(1) Evergreen forest

(2) Mangrove forest

(3) Scrub jungle forest

(4) Deciduous forest

Snakes and vultures are eating rats in a field. If wild dogs are let into the field, what will be the immediate result?

(1) Decrease in the number of snakes

(2) Decrease in the number of vultures

(3) Decrease in the number of rats

(4) Increase in the number of snakes

Coastal Andhra Pradesh and Orissa often face natural disasters due to

(1) Cyclones

(2) Earthquakes

(3) Landslides

(4) Tornadoes

The main cause of global climatic change is

(1) increase in the content of carbon dioxide in the atmosphere

(2) emissions of industrial gases

(3) adding dust

(4) changes in plant cover

The sphere of living matter together with water, air, and soil on the surface of the earth is known as

(1) Lithosphere

(2) Biosphere

(3) Hydrosphere

(4) Atmosphere

‘Green Accounting’ means measuring the National Income of the country taking into account estimation of

(1) the total forest area of the country

(2) the destruction of forest cover of the country

(3) pollution and environmental damage

(4) area of reclaimed fallow land

Which one of the following is an abiotic and renewable resource?

(1) iron ore

(2) livestock

(3) water

(4) forests

The largest ecosystem of the Earth is

(1) Biome

(2)Hydrosphere

(3) Lithosphere

(4)Biosphere

An artificial ecosystem is represented by :

(1) pisciculture tank

(2) agricultural land

(3) zoo

(4) aquarium

Which is the most stable ecosystem?

(1) Desert

(2) Ocean

(3) Mountain

(4) Forest

An ecosystem consists of :

(1) producers, consumers and decomposers in a particular area.

(2) all the plants and animals of an area.

(3) a living community and its environment.

(4) carnivorous and herbivorous of an area

Which one of the following is a greenhouse gas?

(1) Oxygen

(2) Nitrogen

(3) Carbon-di-Oxide

(4) Ozone

An ecological system is a

(1) Biological system

(2) Biogeochemical system

(3) Physicochemical system

(4) Bioecological system

In predation between

i. A lion and a deer

ii. A snake and a frog

iii. A lizard and an insect and

iv. An owl and a rat Which predator will have greater control over its prey?

(1) Lion

(2) Owl

(3) Snake

(4) Lizard

After which one of the following tribes of India, has a large continent of ancient geological history of the world been named?

(1) Santhals

(2) Bhils

(3) Marias

(4) Gonds

The evergreen rain forest is mainly found in regions having well-distributed annual rainfall

(1) Below 50 cm

(2) 50-100 cm

(3) 100-200 cm

(4) More than 200 cm