Q: Eating something that contains pollutants has a negative impact on an organism 's survival, and lakes have been found to be polluted with mercury, rendering fishes unsafe to eat. Given these facts, what has a negative impact on an organism's survival among the following options: - eating food - eating fish - eating water - liver cancer - Greenhouse gasses - fossil fuels - eating mercury - harmful substances
A: eating mercury

Q: Flatworms belong to the phylum Platyhelminthes, and flatworms are bilaterally symmetric. Given these facts, what is true about the phylum Platyhelminthes among the following options: - a hemisphere is tilted away from the sun - biological diversity - they have bilateral symmetry - characteristics - Something with a head, thorax, and abdomen - sub-units of species - aerobic capacity - The number of individuals
A: they have bilateral symmetry

Q: Coal is used for generating heat by burning, and coal burning can cause air pollution and generate carcinogens. Given these facts, heating with coal can cause among the following options: - Electrical energy - chemical reaction - automobile exhaust - Something to move - air pollution - distracted driving - electric outages - Dehydration
A: air pollution

Q: Astove is used for cooking by generating heat, and generation is the making of electricity. Given these facts, how is a stove used for cooking among the following options: - by making heat - by breaking up heat - a hydraulic system - energy usage - An object is seen - by using radio waves - lowered energy cost - by producing ice
A: by making heat