Unit 4B Lesson 3 Word Scramble
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| Question | Answer |
| How has the human population grown over the last 50 years? | It has grown exponentially |
| True or False? An increase in the human population also means an increase in the amount of resources that we need for survival? | True. |
| How do we make decisions when there are conflicts about how a natural resource should be used? | Weigh the costs and benefits of each proposal |
| True or False? Fossil fuels are considered to be renewable resources. | False. It takes millions of years to replace them. |
| Which kind of environmental issue would be an oil spill be considered? | Pollution |
| True or False? Human survival and development are dependent on natural resources. | True. Everything that we used is developed in some way from a natural resource. |
| How can introducing a nonnative species be considered an environmental issue? | When a non native species is successful, it can overtake native species and destroy native habitat. |
| True or False? Fish that are hatched in fisheries are considered to be renewable resources. | True. Fisheries work hard to replace as many fish as they sell to consumers. |
| What are the three categories of environmental issues? | Pollution, Population Growth. and Resource Use. |
| What is the difference between point source and non-point source pollution? | Point source pollution has a specific and identifiable source. Non-point source pollution may have multiple sources and/or are not easily identified. |
| True or False? A forest could be considered a renewable resource. | True. Many types of trees can be replaced within our life time. |
| Solar power is a clean renewable energy source that is abundant. What is a potential draw back of solar power? | Solar power may not be available at night or in cloudy weather. |
| Why has our birth rate increased and our death rate decreased in the last 50 years? | Advances in medicine, technology and sanitation are helping more people to survive longer. |
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