If decomposition improves the soil, then what improves the soil? Answer choices: - decomposition - erosion - green manures - evaporation - fire - nutrients - dehydration - water conservation
decomposition
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If minerals are needed by body processes, then what are vital to body processes? Answer choices: - alveoli - light energy - fur and fat - Energy - heat energy - minerals - Energy. - oxygen
minerals
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If apan is used for cooking food by putting it over fire, then what is used for cooking food by putting it over fire? Answer choices: - a pan - oil - a sink - a fridge - corn - Oak - energy - a microwave
a pan
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If humans have a negative impact on the environment, then what effect has the existence of humans had on the environment? Answer choices: - climate - Negative - Neutral - Positive - Smoking - It expands - sweating - None
Negative
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