Question # 1

A relationship where two species live together closely is called

Choose an answer

Symbiosis

Predation

Competitor

None of these

Which is the solution of environmental problems.

Choose an answer

Reducing pollution

Plantation

Protection of endangered

All these

Carbon cycle and ............. cycle are teh processes in whihc these minerals circulate between the organisms and the environment.

Choose an answer

Hydrogen

Iodine

Oxygen

Nitrogen

Consumers that actively hunt other organism are called.

Choose an answer

Prey

Competitor

Predator

Symbiont

Organism in ecologicla communits interact with one anothe rin....... major ways.

Choose an answer

Two

three

Four

Five

The phenomenon which doe snot lead to global warming.

Choose an answer

Green hous effect

Ozone depletion

Deforestation

Photosynthesis

Ozone is a layer of gases in ............. atmosphere of the Earth.

Choose an answer

Upper

Lower

Middle

Inner

Half of the increase in atmospheric carbon dioxide concentrations in the last.............. years has occured since 1980

Choose an answer

100

200

300

400

--------occupy the b ase of pyramid.

Choose an answer

Producers

Primary canivores

Herbivores

Top carnivores

Th graphical epresentation of tropihic relationship oforaganisms in an ecosystem is called.

Choose an answer

Food Chian

Ecological pyramid

Trophic level

Predation

The organisms upon whihc a redator feeds are called.

Choose an answer

Prey

Carnivores

Herbivores

Producers

The feeding level of an organism in an ecosystem is called.

Choose an answer

Food Web

Food chain

Trophical level

Secession level

The poisonous and harmsful substances which make the air unfavorable for life are called.

Choose an answer

Solid pollutant

Air pollutant

Water pollutant

Acid Rain

Energy of ............ is trapped as chemicla energy by producers.

Choose an answer

Moon

Atom

Sun

Earth

During respiration by the animals, whihc gas is released into the atmosphere.

Choose an answer

Nitrogen

Oxygen

Carbon Di oxide

Hydrogen

A relationship where two species live togetehr closely is called.

Choose an answer

Mutualism

Commensalism

Symbiosis

Hebitate

More Classes

Other Links

General Science 8th Class English Medium Chapter 1 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer