Ques: Head hair is especially important in preventing heat loss from the body, and hair is actually composed of a protein called keratin. Given these facts, what is important in preventing heat loss from the body among the following options: - hydration - a cuticle - stay warm - sweating - warmth - skin - keratin - Animal fur
Ans: keratin

Ques: Ethanol is produced by alcoholic fermentation of the glucose in corn or other plants, and ethanol is a grain alcohol. Given these facts, what is produced by the fermentation in corn and other plants among the following options: - carbon dioxide - white vinegar - gasoline - grain alcohol - glucose - vinegar - Organic compounds - chlorofluorocarbons
Ans: grain alcohol

Ques: Aswitch is used to start the flow of current in an electrical circuit, and electrical power including lights etc can then be switched on. Given these facts, what are on when there is flow of current in an electrical circuit among the following options: - energy - lights - engine - cycles - brakes - waves - water - Vibrates
Ans: lights

Ques: Aplant requires nutrients to grow, and many orchids are rewarding indoor plants. Given these facts, what requires nutrients to grow among the following options: - cows - orchids - humans - Conifers - h2o - mussels - height - mass
Ans:
orchids