what kind of rate where people die in the population?
What is death rate
200
what two things make up smog?
What are smoke and fog
200
Midwestern US disaster that led to crops dying and the topsoil being blown away turning the sky black. Caused by dry soil,windy conditions and the removal of native plants, no organic matter or nutrients in the soil, soil abused and overused.
What is a Dust Bowl
200
The medium size particles of weathered rock.
What is Silt
200
How soil feels based on its particle size.
What is Texture
300
what kind of plague effected the death rate mostly in Europe?
What is bubonic plague or black death
300
list the three things that make up air pollution
What are liquids, gases, and small particles
300
Both dry and wet seasons, less rainfall than forest, lots of nutrients in the top of soil, good for farming, reddish brown color, loose consistency.
What is Grassland
300
The particle with the largest grains and pores of weathered rock found near the bottom of soil.
What is Sand
300
A loose mixture of weathered rock (sand, silt, and clay), organic matter, air, and water.
What is Soil
400
what is the killing of old or sick people?
What is euthanasia
400
which of these is not a potential source of air pollution?
a.co
b.so2
c.no
d.po4
What is po4?
400
Very warm all year,wet and dry seasons,weathered, grayish brown color,sticky texture.
What is Tropical Grassland
400
The different layers in soil.
What is a Soil Profile
400
Decomposing plant and animal materials found in topsoil.
What is Organic Matter
500
what is increasing at an increasing rate?
What is exponential growth
500
what is the difference between a dump and a sanitary landfill?
sanitary landfills cover their trash with dirt.
500
Hot and cold seasons,enough rainfall too support a lot of trees, good for farming, grayish brown to reddish brown, loose consistence.
What is the Forest
500
Slightly above bedrock, no plant roots, very little organic matter.
What is Parent Material
500
The material that came from a living or once living.