General Science - Single MCQs (Page 63)

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Q621. The orbit along which the earth is approximately?...Q622. The planet nearest to the Sun is?...Q623. The brighest planet is?...Q624. The metal whose salts are sensitive to light is ?...Q625. Which one among the following radiations carries maximum energy?...Q626. Which of the following is used in pencils?...Q627. The tree sends down roots from its branches to the soil is know as ?...Q628. Which metal pollute the air of a big city?...Q629. Decibel is the unit for ?...Q630. .Reading of a barometer going down is an indication of ?...