Air Pollution
Acid Rain
True or False: Freshwater is a renewable resource
False. It is a limited resource while other sources of water are renewable.
If you took a shovel and began to dig into the ground, what layer of soil would you penetrate FIRST?
Litter
What is the approximate human population on Earth right now?
8 billion
True or False: An increasing human population means there is an increased need for natural resources.
True
This is a thick, brownish haze the accumulates from car exhaust and industrial emissions
Smog
Name a source of freshwater pollution.
Acceptable answers: sediment from erosion, agricultural wastes, household pollutants, thermal pollution and industrial wastes
What is one reason healthy soil is important to humans?
It sustains agriculture so we can have nutritious foods to eat - healthy soil supports healthy plant life, which is essential to supporting the food web of any ecosystem
Which continent has the largest population?
Asia
Name one renewable resource humans rely on for survival
Acceptable answers: crops (plants that are grown and eaten), trees (for oxygen and for housing), water, sunlight, air
Name a nonpoint source of air pollution
Acceptable answers: burning fossil fuels in cars or for industrial purposes; emissions from agriculture; industrial emissions; forest fires; waste incinerators
True or False: Oil spills can be cleaned quickly from a body of water
False: Oil spills can take years to clean from a marine environment
Why are bacteria, fungi, and bugs important to maintain healthy soil?
They decompose dead organisms and return them as nutrients to the soil
The human population was steadily increasing up until the 1800s, when the rate of change began to rapidly increase. What kind of growth did the human population begin to experience following the Industrial Revolution?
Exponential growth
Name one contributing factor to increasing human population growth in the 1800s
Longer lifespans due to improvements in medicine, sanitation, and agriculture
Name two indoor air pollutants
Acceptable answers: cigarette smoke, smoke from woodburning fireplaces, Molds, bacteria cleaning product, pet hair, radon, paints, solvents
Name one cause of water scarcity
droughts, unequal distribution of water resources; low groundwater levels; contamination
Name the four components of topsoil
Air, Water, Rocks, Decomposing Organisms
According to the book, more than 200 people are born on Earth every minute. About how many people on Earth die every minute?
109
Name one negative consequence of accessing Earth's nonrenewable resources
Acceptable answers: they are depleted and unusable by future generations; mining can result in erosion; accessing some resources results in habitat loss through activities like mining and drilling; emissions result from machinery used in resource extraction
Name the two chemical components necessary to generate acid rain
Sulphur and Nitrogen, or Sulphur Dioxide and Nitrogen Oxide
This is a specific substance that can build up in predators' bodies after eating fish contaminated with industrial wastes
heavy metals (lead, arsenic, mercury)
These two chemical substances are essential to maintaining healthy soil
phosphorus and nitrogen
Overpopulation is when Earth runs out of space and resources to support the human population. What is one negative consequence of overpopulation?
Famine, human conflict over resources, habitat destruction and loss, climate change
Describe sustainable use
Sustainable use is when a natural resource in a way that preserves it at a certain quality for use by future generations