Question # 1

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

Moon

Atom

Sun

Earth

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

100

200

300

400

Consumers that actively hunt other organism are called.

Prey

Competitor

Predator

Symbiont

A symbiotic relationship in whihc both speciesl get benefit is called.

Commensalism

Hebitate

Mutualism

Symbiosis

Which factor is responsible for ecological imbalance.

Over hunting

Change in water supply

Migration

All these

The organisms upon whihc a redator feeds are called.

Prey

Carnivores

Herbivores

Producers

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