Answer the following question given this paragraph: Mutations in many bacteria that allow them to survive in the presence of antibiotic drugs. The mutations lead to antibiotic-resistant strains of bacteria. Q: What is responsible for the development of antibiotic-resistant strains of bacteria? Choices: - mosquitoes - flu shots - negative mutations - bacterial mutations A:
bacterial mutations
(Question)
Answer the following question given this paragraph: Did you ever have a picnic ruined by a surprise rainstorm? People often complain when the weather forecast is wrong. But in fact, weather forecasts today are much more accurate than they were just 20 years ago. Scientists who study and forecast the weather are called meteorologists . How do they predict the weather?. Q: What do we call scientists who study and forecast the weather? Choices: - Climate predictors - TV hosts - forecasters - meteorologists A:
(Answer)
meteorologists
Ques: Answer the following question given this paragraph: "Dry ice," or solid carbon dioxide, is a substance that sublimes at atmospheric pressures. Dry ice is very cold (78C) and so is used as a coolant for goods such as ice cream that must remain frozen during shipment. Because the dry ice sublimes rather than melting, there is no liquid mess associated with its change of state as the dry ice warms. As you may have seen in demonstrations, dry ice merely transforms from a solid to a cold, steamy looking gas. Ferrocene (an iron-containing compound) is usually purified by sublimation by gentle warming at atmospheric pressure. In the Figure below , you can see the reddish ferrocene crystals deposited on the outside of that tube. Deposition is the change of state from a gas to a solid. Q: What is the common term for solid carbon dioxide, which is used as a coolant? Choices: - blue ice - antifreeze - liquid nitrogen - dry ice A:
Ans: dry ice
(Q).
Answer the following question given this paragraph: Luster describes the way light reflects off of the surface of the mineral. You might describe diamonds as sparkly or pyrite as shiny. But mineralogists have special terms to describe luster. They first divide minerals into metallic and non-metallic luster. Minerals that are opaque and shiny, like pyrite, are said to have a "metallic" luster. Minerals with a "non-metallic" luster do not look like metals. There are many types of non-metallic luster. Six are described below ( Table below ). Q: What describes the way light reflects off of the surface of the mineral? Choices: - intensity - density - hardness - luster A:
(A).
luster
Ques:Answer the following question given this paragraph: Almost all energy at Earth's surface comes from the Sun. The Sun's energy heats the planet and the air around it. This causes the atmosphere to move and create weather. Sunlight also powers photosynthesis and life on Earth. Q: Almost all energy at earth's surface comes from where? Choices: - another sun - oceans - wind - the sun A:

Ans:the sun
Answer the following question given this paragraph: Roundworms have a pseudocoelom and hydrostatic skeleton. Their body is covered with tough cuticle. Q: What is the body of a roundworm covered with? Choices: - thick scales - thin epidermis - slime - tough cuticle A:
tough cuticle