Question: You are presented with the question "What are some of the steps that forms a lake?" and the following answer choices: - decomposition and respiration - storing water - photosynthesis and solar energy - near the shoreline - precipitation and run-off - perspiration and excretion - The area was once underwater - At the peak of a mountain Now knowing that lakes are formed by precipitation and runoff and runoff from precipitation is a natural part of the water cycle, choose the best answer.
Answer: precipitation and run-off

Question: You are presented with the question "Which of these diseases cannot reproduce by itself?" and the following answer choices: - fever - Leptospirosis - animals - influenza - bacteria - heat or cold - dangerous - anemia Now knowing that viruses cannot reproduce by themselves and influenza is a disease caused by viruses, choose the best answer.
Answer: influenza

Question: You are presented with the question "A beneficial effect of carpooling is" and the following answer choices: - animal transport - increased water pollution - more beneficial emissions - reduced air pollution - lowered energy cost - staying warm - lower gas mileage - it keeps an organism warm Now knowing that carpooling decreases the amount of cars used to travel to a place and cars are a significant source of air pollution, choose the best answer.
Answer:
reduced air pollution