Question

100 points-what conc. you say about the motion of anobject is it speedtime graph is a straight line parallel to the time axis?

Answer 1

Answer:

Speed-time graph is a straight line parallel to time axis, it means that the speed of the object is not changing with time i.e., the object is performing uniform motion.

Explanation:

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Answer 2

Answer:

The parenchyma also acts as a storage tissue for food, air and water. Cells of sclerenchyma tissue are higly lignified with very thick cell walls and obliterated lumen. Cells are usually elongated and polygonal in shape in cross-section.