Log in Sign up for FREE

Science Explainer: The many effects of flooding

Last updated 11 months ago

3 questions

Note from the author:

Read the passage The many effects of flooding.  Then answer the questions below.

Instructions

Read the passage The many effects of flooding.  Then answer the questions below.

Required

1

Question 1

1.

Drag each answer choice into the correct space. Not all answer choices will be used.

Flood waters can change the landscape. The process of ____________  can wear away riverbanks and cause them to collapse. The water carry dirt and mud from the riverbanks, which settles in the process of __________________  and can clog riverbeds and streams. 

Other Answer Choices:

sedimentation

erosion

dispersion

migration

Required

2

Required

1

Question 2

2.

Drag each statement to the correct box to indicate if it describes a positive or negative effect of flooding.

Floods can cause water to absorb into the ground and reach underground aquifers.
Floods can leave behind pools of standing water, which attract some species of insects.
Floods carry sediment away from river banks and deposit it in the water.
Floods carry nitrogen, phosphorous and other organic materials to the land.

Positive effects of flooding
Negative effects of flooding

Question 3

3.

In what ways do floods affect animal breeding and migration? Select three correct answers.

They can prompt fish migrations when they raise water levels in lakes. 

They can deposit sediment that provides habitats for animals' young.  

They can trigger mass breeding events when they fill wetland environments.  

They can wash away organisms that cause disease and keep animals from breeding. 

They can encourage breeding in ocean ecosystems by improving water quality. 