A. Amino acids B. Carbon C. Glucose salts D. Magnesium ions Correct Answer: Option D D. Magnesium ions
A. Addition of nitrates to the soil B. Aeration of the soil C. Removal of harmful bacteria from the soil…
A. oxygen and water B. oxygen and carbon dioxide. C. oxygen and chlorophyll D. carbon dioxide and water Correct Answer:…
A. add colour to plants but not to trap light energy B. trap light energy that chlorophyll cannot absorb C.…
A. they inject poisonous substances into the trees. B. most trees are susceptible to squirrel bites C. they feed voraciously…
A. Testa B. lntegument C. Ovule D. Ovary Correct Answer: Option C C. Ovule
A. The tail of the sperm fuses with the egg cell B. Both tail and head of the sperm fuse…
A. in an air-conditioned room B. strolling in the sun C. taking a hot drink D. doing strenuous exercise Correct…
A. Choroid B. iris C. Retina D. Lens Correct Answer: Option C C. Retina
A. diverge light rays from far objects to focus image on the retina B. converge light rays to focus image…