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A stream is flows towards the southeast. It is 50 miles long and it flows from a mountain spring 3450 feet above sea level. The stream discharges into a river at an elevation of 1100 feet above sea level. What is: a) the bearing of the stream's headwaters and b) what is the gradient of the stream? a) southeast, b) 47 feet/mile a) northwest. b) 47 feet/mile a) northwest. b) 4 feet/mile a) northeast, b) 400 fcet/mile a) southwest, b) 40 feet/mile

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maryasay

Answer:

a) northwest. b) 47 feet/mile

Explanation:

The gradient of a stream is calculated by subtracting the dis charge height from the height of its headwater and then divided by the distance the stream covers or its length.

Here the height of the headwater = 3450 feet

                            dis charge height = 1100 feet

                                          distance = 50 miles

The gradient of the stream = (3450 feet - 1100 feet) / 50 miles

                                             = 47 feet/mile

A Stream's  gradients is usually higher in a stream’s headwaters than at dis -charge

If he bearing of a stream is SouthEast then that of its headwaters is NorthWest.

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