8th class Science Chapter 1 online mcq test with answers for chapter 1

General Science 8th Class English Medium Chapter 1 Online Test

Sr. #	Questions	Answers Choice
1	Organism in ecologicla communits interact with one anothe rin....... major ways.	Two three Four Five
2	A food chain starts from the..........	Primary carnivores Herbivores Producers Top carnivores
3	--------occupy the b ase of pyramid.	Producers Primary canivores Herbivores Top carnivores
4	------------- gas is released when dead organisms are decomposed by the decomposers.	Oxygen Carbon dioxide Nitrogen Hydrogen
5	During the combustion of fossil fuel. Which gas is ener the atmosphere.	Nitrogen Oxygen Carbon di oxide Hydrogen
6	During respiration by the animals, whihc gas is released into the atmosphere.	Nitrogen Oxygen Carbon Di oxide Hydrogen
7	Carbon cycle and ............. cycle are teh processes in whihc these minerals circulate between the organisms and the environment.	Hydrogen Iodine Oxygen Nitrogen
8	------------- through the food chain is one of the most important functionsof an ecosystem in maintaining balance of nature.	Waisting of energy Destroy fo energy Transfer of energy Produce of energy
9	A relationship where two species live together closely is called	Symbiosis Predation Competitor None of these
10	Consumers that actively hunt other organism are called.	Prey Competitor Predator Symbiont