Questions

he DASH Diet plan was devised to prevent high blood pressure i.e, hypertension.

Ans.  Suppose the speed of boat in still water is x km/h and speed of stream is y km/h

Speedof boat in downstream = (x + y) km/h x+ y = 32 …(i) 

Speed of boat in upstream = (x – y) km/h

x – y = 28 …(ii)

Add. Eqs. (i) and (ii), we get 2x = 60

x = 30 km/h

Cotton Gin was invented by Eli Whitney in 1793, which is used to separate cotton seeds from cotton fiber.

Hence, it was an important invention because it dramatically reduced the amount of time it took to separate cotton seeds from cotton fiber.

Largest sea in the world is Philippine sea.

A deliverable is a measurable, verifiable work product such as a specification, feasibility study report, detailed design document, or working prototype.

Tractor was the single most important invention to farmers.