| 1- | Which of the following is a nonrenewable resource? |
| a | Solar energy |
| b | Hydrogen fuel cell |
| c | Wind power |
| d | Natural gas |
| 2- | Which of the following is a density-dependent factor? |
| a | Decrease in temperature |
| b | Increase in waste production |
| c | Decrease in frequency of hurricanes |
| d | Increase in rainfall |
| 3- | What structure of dispersion describes high densities of individuals in certain resource-rich areas and low densities elsewhere? |
| a | Clumped distribution |
| b | Uniform distribution |
| c | Random dispersion |
| d | Scattered dispersion |
| 4- | An owl eating a seed-eating mouse is an example of what? |
| a | Producer |
| b | Primary consumer |
| c | Secondary consumer |
| d | Tertiary consumer |
| 5- | A relationship which benefits one species and does not affect the other is called __________. |
| a | mutualism |
| b | commensalism |
| c | parasitic |
| d | predatory |
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