Ques: Q: A hydraulic jack that makes it possible to lift a car easily is an example of what, meaning it produces mechanical advantages? Read this paragraph and choose the correct option from the provided answers: A person is able to lift the entire rear end of the automobile using only one hand with the hydraulic jack shown in the image. Hydraulic systems are similar to simple machines in that they can produce very large mechanical advantages. Choices: - quantum physics - simple weapon - complex machines - simple machine A:
Ans: simple machine

Ques: Q: Which organ of the body do large tapeworms attack or block? Read this paragraph and choose the correct option from the provided answers: Choices: - liver - heart - kidneys - intestines A:
Ans: intestines

Ques: Q: What is biomass made into fuel called? Read this paragraph and choose the correct option from the provided answers: More recently, people have learned to process biomass to make fuel. This is called biofuel . Biofuel is created from crops, such as corn or algae. Biofuel is unique among renewable energy sources. This is because it is liquid. Unlike solar energy, for example, biofuels can be used in a car ( Figure below ). Biofuels burn more cleanly than fossil fuels. They create less pollution and less carbon dioxide. Biofuels, such as ethanol, are added to gasoline. This cuts down the amount of fossil fuels that are used. Choices: - benign fuel - toxic fuel - renewable fuel - bio fuel A:
Ans: bio fuel

Ques: Q: What is the name of the life stage when a child becomes sexually mature? Read this paragraph and choose the correct option from the provided answers: Puberty is the stage of life when a child becomes sexually mature. Puberty lasts from about 12 to 18 years of age in boys and from about 10 to 16 years of age in girls. The age when puberty begins is different from one child to another. Children that begin puberty much earlier or later than their peers may feel self-conscious. They may also worry that something is wrong with them. Usually, an early or late puberty is perfectly normal. Choices: - adolescence - maturity - adulthood - puberty A:
Ans:
puberty