Question

2. Which of these features helps the leaves of lotus plants from rotting
a. They have hollow stems.
b. Leaves have air chambers
c. Leaves are large in size
d. Leaves have a waxy coatir
3. Which of these execute rotational motion?
a. An oscillating pendulum
b. A train moving on a straig
C. The blades electric ceiling fan when it is working
d. A bird gliding in the sky
4. A box with a tiny hole on one of its sides can act as a
a. pinhole camera b. mirror C. source of light
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Answer 1

Answer:

2. (D) Leaves have a waxy coatir

4. (A) pinhole camera