Question

Radha places some gram seeds in a water container and observes that a few seeds start floating on the surface of the water, while the rest sink to the bottom of the container. Next, she collects the floating and the sunken seeds and sows them in pots A and B respectively, both containing the same quality of the soil. She keeps the two pots in her garden and observes that only the seeds in pot B germinate.
Which of the following statements is correct?

• A. The seeds sown in pot A were hollow, while the seeds sown in pot B were healthy.
• B. The seeds sown in pot B were hollow, while the seeds sown in pot A were healthy.
• C. The seeds sown in pot A received more sunlight than the seeds sown in pot B.
• D. The seeds sown in pot B received more sunlight than the seeds sown in pot A.

Answer 1

The correct option is A The seeds sown in pot A were hollow, while the seeds sown in pot B were healthy.

The seeds floating on the surface of the water are damaged. They are hollow, which makes them lighter. As a result, they float on the surface of the water. Hence, the seeds sown in pot A did not germinate because they were hollow.