If you left a board lying in the grass for a few days, what would happen to the grass underneath the board? Why?
Answer (3)
The grass would die (turn brown/yellow). This is because the grass has not received any sunlight. This means it cannot photosynthesise and make glucose (food) which it needs to survive.
The grass underneath the board would likely turn yellow and die. This occurs due to a lack of sunlight, a process known as photosynthesis.
Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy, usually from the sun, into chemical energy in the form of glucose. A set of reactions in the chloroplasts of plant cells involving chlorophyll uses carbon dioxide and water to produce glucose and oxygen. The general equation for photosynthesis is as follows:
6 C O 2 + 6 H 2 O + light energy → C 6 H 12 O 6 + 6 O 2
In this equation:
C O 2 represents carbon dioxide.
H 2 O represents water.
C 6 H 12 O 6 represents glucose.
O 2 represents oxygen.
When a board is placed over grass, it blocks the sunlight from reaching the grass blades. Without sunlight, the grass cannot photosynthesize, and as a result, it cannot produce the glucose it needs for energy. Additionally, the grass cannot release oxygen, which is a byproduct of photosynthesis. Over time, the grass will exhaust its energy reserves and die, leading to discoloration and decay.
Furthermore, the board can also create a humid microclimate beneath it, which can promote the growth of fungi and other diseases that can further harm the grass. The lack of air circulation can exacerbate these conditions, contributing to the grass's deterioration.
In summary, the grass underneath the board would die due to the absence of sunlight, which is essential for photosynthesis, the process by which plants produce food and oxygen. The grass would turn yellow and eventually decompose if the board remains in place for an extended period.
If a board lies on grass for several days, the grass underneath will likely turn yellow and die due to a lack of sunlight needed for photosynthesis. This process is vital for plants to create food and release oxygen. Additionally, a humid environment beneath the board may lead to further decay from mold or fungi.
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