If harming a certain kind of organism causes that animal's population to decrease, then harming a certain kind of animal will cause the population of that animal to do what? Answer choices: - decrease - eat more - increase - break off - threatened - reproduce - reduce - kill them
decrease

If creating wood-free paper does not require lumberjacks, then creating wood-free paper does not require what? Answer choices: - scarce resources - patience - deforestation - testing - science - lumberjacks - Energy. - carbon dioxide
lumberjacks

If air pollution damages animal populations causing them to decrease, then what causes an animal population to decrease? Answer choices: - sound pollution - Greenhouse gases - Pesticides - water - fossil fuels - Air pollution - animal diversity - steroids
Air pollution