Human Impact on the Environment

Wind power is renewable.

• true

• false

The use of pesticides by farmers can result in

• ecological succession

• material recycling

• environmental pollution

• selective breeding

Which explanation supports the proposal? Proposal: We should start replacing goods made out of plastic with biodegradable materials.

• This will reduce the amount of trash put in landfills each year.

• This will increase the amount of trash placed in landfills each year.

• This will decrease the amount of non biodegradable products that are harmful to earth.

Which human activity would preserve nonrenewable resources?

• deforestation
• removing carnivores from a forest 
• recycling
• heating homes with fossil fuels  

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

Which human activity would most likely deplete nonrenewable resources?

• use of natural enemies to eliminate insect pests
• development of wildlife refuges 
• governmental restriction of industrial pollution 
• increased use of fossil fuels

Many common products, such as wooden furniture, paper, and books, are made from trees. Which of the following is a likely consequence of humans cutting down a forest in order to make use of the natural resources there? 

• the decrease of chemical runoff into the oceans
• increased acid rain
• the increase of light pollution in cities
• the destruction of habitats

What causes smog?

• The burning of particulates
• The formation of ozone
• Acid Rain
• the interaction of sunlight with pollutants produced by fossil fuels

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

Global warming has been linked to a decrease in 

• the size of the polar ice caps 
• the temperature of Earth 
• the rate of species extinction 
• the rate of carbon dioxide production