Human Impact on the Environment quiz 2

Wastes produced by agriculture, households, industry, mining, and other human activities can end up in ______________.

• groundwater
• streams and rivers
• oceans
• All of these choices

About 97% of the water on Earth is ___________________.

• fresh water
• groundwater
• salt water
• ice

Tags

CCSS.RI.11-12.5

CCSS.RI.6.5

CCSS.RI.7.5

CCSS.RI.8.5

CCSS.RI.9-10.5

Increase in which gas is primarily responsible for increased global warming?

• Carbon dioxide
• Water vapor
• Methane
• Nitric oxides

When fertilizers run off farmland into streams and ponds, the nitrogen content of the water increases. This can lead to rapid growth of algae in a process called eutrophication. How can this process affect other organisms in the water?

• Oxygen is used up as algae is decomposed, reducing the amount available to other organisms.
• The water becomes better able to support aerobic organisms.
• The algae provide food for fishes and other organisms, leading to decreased algae populations.
• The extra nitrogen provides additional food for the other organisms, increasing their population.

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

• carrying capacity
• primary succession 
• denitrification
• mutualism

What is the most dramatic result of deforestation?

• land is no longer green and full of life
• pictures from space show deforestation
• loss of habitat for approximately 70% of the worlds species
• people can't explore rainforests

Which has the least negative impact on wildlife habitat?

• agriculture
• development
• deforestation
• recreation

What are some reasons deforestation occurs?

• clearing land for agriculture, ranching, and mining
• just wanting to destroy things
• Population moving from rural areas to cities
• to make room for infrastructure

The natural resources used by society are limited by various factors. Why is coal considered a nonrenewable resource?

• Once coal is used up, it can never be replaced.
• Coal is a nonrenewable resource, because it comes from the impact of meteors with the Earth
• Coal was a renewable resource, until it was mismanaged by humans
• Coal is considered a nonrenewable resource, because it takes millions of years to form

Fossil fuels are an important natural resource used by society. Which of the following best describes fossil fuels?

• They are any liquid fuel derived from once-living matter.
  
• They are organic fuels derived from ancient plants and animals.
• They are fuels in which dinosaur fossils are commonly found.
• They are naturally occurring inorganic fuels like coal and petroleum.