Fact 1: Biofuel is used to produce electricity by burning. Fact 2: Biofuels are alcohols, such as ethanol or other chemicals, derived from biomass or living matter. Given the two facts above, answer the question "What produces electricity by burning?" with the following options: - Green beans - energy - Alcohols - Water - Most plants - Light - Sand - heat energy
Alcohols

(Question)
Fact 1: Cells have multiple repair mechanisms to fix mutations in DNA. Fact 2: DNA excision repair is a major cellular response to DNA damage. Given the two facts above, answer the question "What is one method of fixing DNA mutations?" with the following options: - Exfoliation - agriculture - ligt - evaporation - A computer - acetic acid - Cooking - Excision
(Answer)
Excision

Ques: Fact 1: Competition may cause animals to fight towards members of their own species. Fact 2: Humans are animals too. Given the two facts above, answer the question "what species may be caused to fight each other by competition?" with the following options: - h2o - Lobsters - violence - pigeons - gases - omnivores - bullfrogs - humans
Ans: humans

(Q).
Fact 1: Stalactites are formed by deposition. Fact 2: Most stalactites are formed from drips of water. Given the two facts above, answer the question "What are stalactites deposits of?" with the following options: - Calcium carbonate - Decayed matter - Sediment - Drips of water - Still water - detritus - calcite - Tourists
(A).
Drips of water

Ques:Fact 1: Cartilage is a tough tissue that contains a protein called collagen. Fact 2: Sharks have a cartilage skeleton. Given the two facts above, answer the question "What has skeleton made of tough tissue that contains a protein called collagen?" with the following options: - mammals - rocks - animals - sharks - a fish - cows - humans - plants

Ans:sharks

Ques: Fact 1: Constriction occurs when the muscular walls of blood vessels contract. Fact 2: Muscle spasms are involuntary contractions of a muscle. Given the two facts above, answer the question "What can muscle spasms cause?" with the following options: - massive damage - matter vibrating - constriction - friction - Dehydration - ketosis - stretching - photosynthesis
Ans:
constriction