GEOLOGY

EARTH SCIENCE

GROUNDWATER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What are pebbles and boulders carried in a stream called?
A
a bed load
B
a suspended load
C
a youthful load
D
a dissolved load
Explanation: 

Detailed explanation-1: -The suspended particles that fall to the bottom of a water body are called settleable solids 10. As they are found in riverbeds and streambeds, these settled solids are also known as bedded sediment 8.

Detailed explanation-2: -Bed load refers to the discharge of sediment particles which are too heavy to be suspended by the turbulent action of the flow. These particles move by rolling, sliding and skipping (“saltation”) along the stream bed.

Detailed explanation-3: -Definition of Bed load: Bed load refers to the sediment which is in almost continuous contact with the bed, carried forward by rolling, sliding or hopping.

Detailed explanation-4: -The suspended load is held aloft in the water column by turbulence. The bed load is made up of sands, gravel, cobbles, and boulders. Bed load is transported by rolling, sliding, and bouncing along the bed of the channel (Allan, 1995).

Detailed explanation-5: -Bed load rolls slowly along the floor of the stream. These include the largest and heaviest materials in the stream, ranging from sand and gravel to cobbles and boulders. There are two main ways to transport bed load: traction and saltation.

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