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)