1. No credible source
2. Check if its a biased answer
3. Examine evidence
Answer:
The correct answer will be option-B.
Explanation:
The plant tissues are composed of three types of cells: parenchyma, collenchyma and sclerenchyma.
The parenchyma and collenchyma remain alive at their maturity but sclerenchyma loses their protoplasm and become dead. These cells deposit lignin in their secondary walls and form hard tissues of the plant-like hard shell of a coconut. Sclerenchyma provides mechanical strength to the plant.
Thus, Option-B is the correct answer.
Answer:
The air near the earth’s surface consists of 77 percent nitrogen and about 21 percent oxygen.
Explanation:
I hope this helps
there is also a bit of Carbon Dioxide
