This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why is living on a floodplain behind a levee safe from flooding? a. Levees are rarely overtopped. ... (Read 23 times)

abern

  • Hero Member
  • *****
  • Posts: 533
on: Jul 13, 2018
Why is living on a floodplain behind a levee safe from flooding?
   a. Levees are rarely overtopped.
   b. Water cannot seep under levees to flood the floodplain.
   c. Levee banks are rarely eroded enough to fail.
   d. Once a levee is built high enough to contain a 100-year flood, it will never flood.
   e. Actually, 100-year flood levels often continue to get higher with time.

Question 2

How does a bridge promote erosion in a channel?
   a. The bridge pilings interfere with the water flow, causing additional sediments to be deposited.
   b. The water velocity decreases, due to restricted flow over the floodplain.
   c. The water velocity increases, due to restricted flow over the floodplain.
   d. The channel height decreases, and large particles fall out, creating more surfaces for erosion to occur.
   e. A bridge does not promote erosion.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

laurnthompson

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 13, 2018
Answer to Question 1

ANSWER: e

Answer to Question 2

ANSWER: c


abern

  • Member
  • Posts: 533
Reply 2 on: Jul 13, 2018
YES! Correct, THANKS for helping me on my review

komodo7

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Anthropologist Andrea Wiley (left) investigates the effects of high-altitude living on reproductive Anthropologist Andrea Wiley (left) investigates the effects of high-altitude living on reproductive
A Typical Floodplain A Typical Floodplain
Living with Floods Living with Floods
Living will. Living will.
About 78% of middle-aged adults (aged 40–59) have at least one living parent, and for over a third ... About 78% of middle-aged adults (aged 40–59) have at least one living parent, and for over a third ...
Pineapples carry harmful insect shell insects, safe to eat? Pineapples carry harmful insect shell insects, safe to eat?
Video: Uterine (menstrual) cycle - phases

For a complete list of videos, visit our video library