Gases from burning coal and oil dissolving in water in the atmosphere causes acid rain, and acid rain can harm plant life and actually kill plants. Given these facts, gases from burning coal and oil dissolving in water can harm what among the following options: - soils - people - oil reserves - plant life - animals - coal factories - humans - gas buildup
plant life

Ethanol is produced by alcoholic fermentation of the glucose in corn or other plants, and ethanol is the most widely used biofuel today. Given these facts, what is produced by alcoholic fermentation of the glucose in corn or other plants among the following options: - Chemical energy - it helps plants in growing - the corniest beverage - Organic compounds - the least used fuel source - the least used biofuel - the most widely used biofuel - A compound that donates proton
the most widely used biofuel

Q: Most invertebrates have a more complex nervous system, and corals, and invertebrates in general, are delicate creatures. Given these facts, what can have a more complex nervous system among the following options: - a fish - Birds - insects - coral - the Sun - ducks - rocks - air molecules
A: coral

Question: Fish have a circulatory system with a two-chambered heart, and mammals have a four-chambered heart. Given these facts, how many sections does a fish heart have among the following options: - ovum - fat - four - p53 - two - cut - bone - stem
Answer: two

*Question*
Operating an automobile usually requires fossil fuels, and fossil fuel pollution can cause asthma and lung problems, especially for children and the elderly. Given these facts, a possible downside of driving a car is among the following options: - slow and inefficient - more asthma in children - split ends - greying hair - Plant growth is reduced - decreases its bodily water - balding - Greenhouse gasses
**Answer**
more asthma in children

(Q).
Cells that divide uncontrollably may form a tumor, or abnormal mass of cells, and tumors are either benign or malignant. Given these facts, how are cells that divide uncontrollably classified among the following options: - Leptospirosis - deadly and devastating - harmful substances - graptolites - epidermis and dermis - As benign or malignant - metabolic reaction - microorganisms
(A).
As benign or malignant