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Science-Related Homework Help Geography and Earth Sciences Topic started by: oliverb1 on Mar 6, 2018



Title: What is an expansive soil? What feature ...
Post by: oliverb1 on Mar 6, 2018
What is an expansive soil?

Question 2

What feature distinguishes the two subclasses of bony fish?
 A)gill structure
 B)skeletal structure
 C)fin structure
 D)teeth structure
 E)scale structure

Question 3

Thick deposits of loess form longitudinal desert dunes.
  Indicate whether the statement is true or false

Question 4

Carbon dioxide levels in the atmosphere are rising due to the burning of fossil fuels. How might this increased level of carbon dioxide affect rates of weathering?

Question 5

What does the name Placoderm mean?
 A)plate-skinned
 B)bony skin
 C)scaly skin
 D)spiny skin
 E)fleshy skin

Question 6

All dunes originate in desert conditions.
  Indicate whether the statement is true or false


Title: What is an expansive soil? What feature ...
Post by: kkoonge on Mar 6, 2018
Answer to #1

Some soils contain clay minerals that increase in volume when wet and shrink when they dry out. Any soil that expands 6 or more is an expansive soil.

Answer to #2

C

Answer to #3

FALSE

Answer to #4

Increased amounts of atmospheric carbon dioxide will increase the amount of carbonic acid that forms in the atmosphere and result in an increase of chemical weathering.

Answer to #5

A

Answer to #6

FALSE


Title: What is an expansive soil? What feature ...
Post by: oliverb1 on Mar 6, 2018
TYVM


Title: What is an expansive soil? What feature ...
Post by: kkoonge on Mar 6, 2018
no worries, happy to help out