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(i) Seed propagation is not used in bananas because cultivated varieties are seedless and sterile.(ii) Vegetative propagation uses suckers or offsets from the parent plant’s base, which grow into new plants.(iii) Advantage: true-to-type plants; Disadvantage: diseases spread.(iv) ...
During photosynthesis, plants release a large amount of oxygen as a by-product while absorbing carbon dioxide. The oxygen produced is much more than what plants use for respiration, so the atmosphere never faces oxygen shortage. CBSE Sample Paper Class 10 Science ...
The correct answer is [C] A is true but R is false.The maximum concentration of chemicals and pesticides occurs at the highest trophic level, not the first. These chemicals are non-biodegradable, so they accumulate through the food chain, causing ...
