If fertilizers are added to fresh water .. AIIMS2002

Related MCQs

• Match the items given in column I and II Column-1 Column-II (P) Water accumulation in potted plant (i) Chemical fertilizers (Q) Aquatic weed (ii) Mercury,DDT (R) Eutrophication (iii) Eichhornia (S) Nonbiodegradable (iv) Water logging
• Which group is for common fresh water fishes.
• If marine fish is kept in fresh water, will it survive
• Give correct option for the given true and false statements (i) Some insects, birds and mammals living in warm and dry climate have more darker black pigments than the races of same species living in cold and humid climate. (ii) Tempreture variation is much lesser in aquatic habitat compared to terrestrial habitat (iii) In deep fresh water lakes, there is gradual incrase in tempreture from surface to the bottem (iv) In an aquatic habitat production increases with insing depth. (T =True, F = False)
• Whose water potential is less than water potential of root hair during water absorption by root hair. (Guj. CET 2011)
• In an experiment demonstrating the evolution of oxygen in Hydrilla, Sodium bicarbonate is added to water in the experimental set-up. What would happen if all other conditions are favourable ?
• What will happen to the rate of photosynthesis if sodium bicarbonate is added in the water having hydrilla plant in a beaker
• With respect to value of BOD, arrange the following in descending order. i) Distilled water ii) Tap water iii)Industrial effluent iv)Sewage discharge in the river
• (1) In human being NH3 is convert in urea is liver (2) Insect birds and land nail are urecotelic (3) A small amount of water is wasted n excretion of anomia however not much energy is used in doing so. (4) More energy is required in the preparation of urea but not a large amount of water is needed to be lost
• What is value of BOD of sewage water in comparision to normal water ?