Geomorphology B (spring 2016) Flashcards
Select all that apply to the animal kingdom including humans:
a. Produce oxygen as a waste gas
b. Take in carbon dioxide needed for cell respiration
c. Use oxygen to burn a fuel called glucose for energy
d. Produce carbon dioxide as a waste gas
e. Helps to lower the amount of carbon dioxide in the atmosphere
c. Use oxygen to burn a fuel called glucose for energy
d. Produce carbon dioxide as a waste gas
How do plants break rock in the Earths crust into sediments?
Water pressure in their roots build up until the roots enlarge a small crack ad break boulders free
Ice wedging causes mechanical weathering of rock by…
freezing and thawing of water
How long did it take for the thick, fertile soil of the North American prairies to develop?
Thousands of years
How do carbon emissions lead to global warming?
By trapping the sun’s heat in the atmosphere
Increasing carbon dioxide in the air contributes to the chemical weathering of rocks because…
Carbon dioxide added to water in raindrops produces carbonic acid and makes the rain aid
True of False:
As a river’s slope increases, the power of the river to cause erosion usually decreases
False
How is chemical weathering different from physical weathering?
Chemical weathering changes the composition of a mineral turning it into a new mineral
How do you you disposes of alkaline batteries?
Only at a hazardous waste drop off site because they contain lead.
The density of 1 kg of water_______ when it is frozen into a solid
decreases
How do you dispose of rechargeable batteries?
Only at a hazardous waste drop off site because they contain lead.
Because of the difference in surface area, larger sediments get weathered _____ than smaller sediments of the same type
slower
A hot and wet climate causes weathering to take place
Rapidly
Where a river flows from an area of harder rock toa an area of softer rock, the softer rock may wear away, eventually forming a drop called
a waterfall
Soil that is rich in humus has high…
fertility
