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

Top Scorers Of Chapter 1 "General Science 8th Class English Medium Chapter 1 Online Test" MCQ`s Test

Sr.#	Question	Answer
1	Carbon cycle and ............. cycle are teh processes in whihc these minerals circulate between the organisms and the environment.	A. Hydrogen B. Iodine C. Oxygen D. Nitrogen
2	Which is the solution of environmental problems.	A. Reducing pollution B. Plantation C. Protection of endangered D. All these
3	A food chain starts from the..........	A. Primary carnivores B. Herbivores C. Producers D. Top carnivores
4	A relationship where two species live together closely is called	A. Symbiosis B. Predation C. Competitor D. None of these
5	The energy of the Sun in traped as chemical energy by.	A. Tertiary consumers B. Primary consumers C. Producers D. Secondary consumers
6	The phenomenon which doe snot lead to global warming.	A. Green hous effect B. Ozone depletion C. Deforestation D. Photosynthesis
7	The feeding level of an organism in an ecosystem is called.	A. Food Web B. Food chain C. Trophical level D. Secession level
8	The poisonous and harmsful substances which make the air unfavorable for life are called.	A. Solid pollutant B. Air pollutant C. Water pollutant D. Acid Rain
9	------------- through the food chain is one of the most important functionsof an ecosystem in maintaining balance of nature.	A. Waisting of energy B. Destroy fo energy C. Transfer of energy D. Produce of energy
10	The organisms upon whihc a redator feeds are called.	A. Prey B. Carnivores C. Herbivores D. Producers