1. Can the stem of a plant be compared with a street with two-way traffic? Give reason.

Yes, the stem of a plant can be compared with a street with two-way traffic. It is because in stem, water and mineral move in upward direction and food moves in downward direction.

The stem transports water and minerals from the root to leaves and other parts of the plant (upward).

The food prepared by the leaves travels through the stem to different parts of plant and roots (downward).