1. Which fungus is used in making bread?   Pleurotus   Penicillium   Aspergillus   Yeast   Hint Half-n-half Clue   2. Water is used to produce electricity.   False   True   3. Saprophytes derive their food from dead organisms.   False   True   4. What is quinine used for ?   Curing Typhoid   Removing pimples   Curing Malaria   Curing Aids   Half-n-half Clue   5. Which is not a 'nonrenewable' source of energy ?   Petrol   Wind   Coal   Soil   Half-n-half Clue   6. Which is not a 'biotic part' of the ecosystem ?   Plants   Water   Insects   Bacteria   Half-n-half Clue   7. Very high concentration of carbon dioxide accelerates plant growth.   True   False