Question

4. Write the key words:
(a) Rusting
(b) Migration
(c) Stomata
(d) Sericulture
(e) Virtual Image​

Answer 1

Answer:

(a) Rust is a chemical reaction (oxidation) of iron that occurs over a period of time as the bare metal surface comes in contact with oxygen present in the air or water.

(b) migration is a movement to another place, often of a large group of people or animals.

(c) Stomata are tiny openings or pores that enable gaseous exchange. Stomata are usually found in plant leaves.

(d) Sericulture, also called silk farming, is the process of making silk fibers.

(e) Virtual image refers to the image which forms when the light rays appear to meet at definite point, after reflection from the mirror. An erect image is one that appears right-side up. An erect image is formed by the actual intersection of rays.

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