Human Impact

Which of the following has the lowest porosity?

• Clay
• Silt
• Gravel
• Sand

A soil sample with a large amount of space between the particles will have a

• High Porosity
• Low permeability rate
• High capillarity
• Low infiltration rate

Flash flooding often occurs in city areas because

• Roads, pavements, and buildings reduce the infiltration of water into the ground
• Ground water storage is usually very large
• unoff decreases during precipitation
• The heat generated by city areas decreases actual evapotranspiration

Water flows through permeable materials ____________________ than impermeable materials.

• slower
• faster

What are all the factors that affect the amount of runoff?

• area receives, type of soil, shape of land, vegetation
• air, water, ice, dirt
• type of percipitation , shape of land, vegetation

What are some consequences of deforestation?

• increased population in cities
• building of more infrastructure
• soil erosion, loss of ability of trees to remove CO2 from the atmosphere
• more mercury and cyanide released into rivers

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

largest number of individuals of a population that the environment can support  

• carrying capacity
• primary succession 
• denitrification
• mutualism

Which human activity is correctly paired with its likely future consequence?

• overfishing in the Atlantic — increase in supply of flounder and salmon as food for people 
• development of electric cars or hybrid vehicles — increased rate of global warming 
• use of fossil fuels — depletion of underground coal, oil, and natural gas supplies 
• genetically engineering animals — less food available to feed the world’s population

Tags

NGSS.MS-ESS3-4

What are renewable resources?

• Resources that are used faster than they form
• a.       Resources that can replenish themselves over time
• a.       Resources that exist only in urban areas
• Resources that exist only in rural areas

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-5

How could you save natural resources?

• leave your bedroom lights on
• use fertilizer in your yard
• take a bus or the subway
• become a vegetarian

Tags

NGSS.MS-ESS3-4