Sita wants to grow sugarcane in the garden. She planted leaf ,stem and root of sugarcane, which of these will give rise to a new plant.

The correct answer is - stem.

Explanation:

Sugarcane plants are grown from the cuttings of the sugarcane and planted in soil horizontally. There are rings present at each stem form by the falling of the old leaves. Roots come from the stems planted horizontally from small nodes present on stems.

Sit needs to cut the sugarcane stems and planted them in the soil horizontally to grow the sugarcane plant but it needs to be remembered that sugarcane plants required sunlight to grow.

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.