Which tool do you use to view the cells? The rearing of silk worms to gather silk is known as. The image formed by a plane mirror is. Organisms that make food themselves are called.

Question 1: Choose the tool you use to view the cells.

Cells are microscopic and cannot be seen with the naked eye. A microscope is used to magnify and view them clearly. Laser is not used for viewing cells.

Correct option: (b) Microscope

(b)

Question 2: The rearing of silk worms is known as -

Pisciculture is fish rearing, horticulture is plant cultivation, cocoon is the silk pod, sericulture is rearing of silk worms for silk production.

Correct option: (d) sericulture

(d)

Question 3: The image formed by a plane mirror is

A plane mirror always forms a virtual image (behind the mirror) that is erect (same orientation as object), not real.

Correct option: (a) virtual and erect

(a)

Question 4: Organisms that make food themselves are called -

Autotrophs (like plants) produce their own food via photosynthesis. Heterotrophs depend on others, saprotrophs decompose dead matter.

Correct option: (b) autotrophs

(b)