Question

David put a plant in a black box as shown. The box also had a black lid to cover the front. David only opened the box to add water to the plant. The plant stayed in the box for 10 days. When David took the plant out of the box on the tenth day, the plant was dead. Why did the plant dead only after ten days in the box?

Answer 1

The plant died after ten days in a black box because it received no light, preventing photosynthesis and leading to energy depletion.

Step-by-step explanation:

When David put the plant in a black box and covered it with a black lid, he prevented it from receiving any light. Plants require light to perform photosynthesis, which is a process that converts light energy into chemical energy stored in glucose that plants use as food. Without light, the plant cannot produce the necessary energy to grow and stay alive.

Over the course of ten days, the plant within the black box used up its stored energy reserves, as no photosynthesis was occurring due to the absence of light. Additionally, essential processes such as respiration and water uptake may have been negatively affected. Therefore, the most plausible cause of the plant's death after being kept in complete darkness for ten days is the lack of photosynthesis and subsequent depletion of energy reserves.

Answer 2

the plant died because of lack of sunlight

Step-by-step explanation:

A plant gets its food from the photosynthesis process, which combines CO₂ and H₂0 into carbohydrates, the two substances are in the box, but for this they need energy from sunlight.

CO₂ + H₂O + Sunlight /chlorophyll → (CH₂0)ₙ + O₂

the extra oxygen is released into the atmosphere.

Therefore the plant died because of lack of sunlight