Weathering
Which factors increase weathering? (there are 3 correct answers)
increasing rain, increasing temperature, increasing organic activity.
The process by which rock and soil are removed from the Earth’s surface and deposited in other locations is termed as
erosion
partially decayed remains of plants and animals that form the organic portions of soil.
humus
In 2011, the human population increased to ______.
7 billion
Erosion results in the loss of soil ____ necessary for the growth of crops.
nutrients
True or False: Different rock types weather at different rates
True
Sediments, or solid particles, can be transported by 3 things:
water, wind, and glaciers
Pedalfer soil is very ___ and is dark brown or black.
fertile
Which of the following is decreasing?
a. The population
b. The rate of population growth
c. The rate at which the rate of population growth is increasing
d. None of the above
the rate of population growth
Soil is a renewable resource that takes a _____ time to develop.
a long time
____, _______, and ______ are all things that cause abrasion.
Water, Wind, Gravity. (Ice is also acceptable)
______ is created by the removal of finer silts and clay by the wind, leaving behind a pebbled, rocky surface.
desert pavement
Pedocal soil has less ___ in it. ( 2 valid answers)
organic matter and calcium carbonate
Before the Industrial Revolution most labor was done by:
humans
Green revolution techniques heavily rely on ______. (there are 3 correct answers)
water, fertilizers, and pesticides
Rocks are chemically weathered by? (There are 3 correct answers)
water, acid rain, and oxygen
Alluvial fans form mostly in _____ regions.
arid
If a soil holds together well and the amount of water in it is high, it is probably rick in _____.
clay
The most dramatic rise in the human population began approximately _____ years ago.
200
What is the term for species of animals introduced to new habitats by human intervention
invasive
Hydrolysis is a type of ______ weathering
chemical
Gravity can cause _____ on steep slopes. (there are 3 correct answers)
slumps, landslides, and mudflows
This layer of soil has the highest proportion of organic material.
topsoil
Since the use of burning fossil fuels for energy, this waste product has increased.
CO2
The goals of sustainable development are to: (3 correct answers)
Protect the environment
Use resources no faster than the rate at which they are regenerated
Help people out of poverty