This topic contains a solution. Click here to go to the answer

Author Question: Why are the deposits of streams graded with the largest boulders or pebbles at the bottom? a. The ... (Read 43 times)

K@

  • Hero Member
  • *****
  • Posts: 608
Why are the deposits of streams graded with the largest boulders or pebbles at the bottom?
   a. The largest boulders are always at the bottom; they never move.
   b. The largest boulders eroded from the stream bank immediately roll to the bottom and stay there.
   c. Jostling of boulders, pebbles, and sand in turbulent water moves the boulders to the bottom.
   d. As the water slows after a flood, the largest boulders drop out first.
   e. Tributaries add additional sediment to the stream.

Question 2

What does NOT cause an area of rapids on a stream?
   a. steepening of the channel slope
   b. bedrock in the stream channel
   c. the presence of a thalweg
   d. higher than normal water in the stream bed
   e. greater channel depth and water velocity



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

katheyjon

  • Sr. Member
  • ****
  • Posts: 331
Answer to Question 1

ANSWER: d

Answer to Question 2

ANSWER: d





 

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

For a complete list of videos, visit our video library