Answer the following question given this paragraph: What is the difference between distance and displacement? Whereas displacement is defined by both direction and magnitude, distance is defined only by magnitude. Displacement is an example of a vector quantity. Distance is an example of a scalar quantity. A vector is any quantity with both magnitude and direction. Other examples of vectors include a velocity of 90 km/h east and a force of 500 newtons straight down. The direction of a vector in one-dimensional motion is given simply by a plus. Q: Displacement is a vector quantity, which means it has both direction and what else? Choices: - radiation - rate - waves - magnitude A:
magnitude
(Question)
Answer the following question given this paragraph: Larger cycloalkanes also exist, but are less common. Cyclic hydrocarbons may also be unsaturated. A cycloalkene is a cyclic hydrocarbon with at least one carbon-carbon double bond. A cycloalkyne is a cyclic hydrocarbon with at least one carbon-carbon triple bond. Shown below are the simplified structural formulas for cyclohexene and cyclooctyne. Q: What's the term for a cyclic hydrocarbon with a carbon-carbon triple bond? Choices: - bialkyne - tricycloalkyne - bicycloalykne - cycloalkyne A:
(Answer)
cycloalkyne
Ques: Answer the following question given this paragraph: The amount of stress on a rock may be greater than the rock's strength. In that case, the rock will undergo strain or deformation ( Figure below ). Deep within the Earth, the pressure is very great. A rock behaves like a stretched rubber band. When the stress stops, the rock goes back to its original shape. If more stress is applied to the rock, it bends and flows. It does not return to its original shape. Near the surface, if the stress continues, the rock will fracture (rupture) and break. Q: Deep within the earth what force is so great that a rock behaves like a stretched rubber band? Choices: - momentum - magnetism - volcanoes - pressure A:
Ans: pressure
(Q).
Answer the following question given this paragraph: The single-celled prokaryotic organism otherwise known as bacteria. And all it takes is one to quickly grow, under just the right conditions, into millions and billions. Luckily, we know how to control bacteria when necessary. But bacteria do serve many important purposes. In fact, we could not survive without them. Q: What type of organism is a bacteria? Choices: - multicellular organism - fungi - paramecium - single-celled prokaryotic A:
(A).
single-celled prokaryotic
Ques:Answer the following question given this paragraph: Summary The conversion of metals from their ores to more useful forms is calledmetallurgy, which consists of three general steps: mining, separation and concentration, and reduction. Settling and flotation are separation methods based on differences in density, whereas pyrometallurgy is based on a chemical reduction at elevated temperatures, and hydrometallurgy uses chemical or electrochemical reduction of an aqueous solution. In pyrometallurgy, a reductant must be used that does not form stable compounds with the metal of interest. In hydrometallurgy, metals are separated via the formation of metal complexes. Q: What is the conversion of metals from their ores to more useful forms called? Choices: - thermodynamics - nanotechnology - crystallography - metallurgy A:

Ans:metallurgy
Answer the following question given this paragraph: The male reproductive system forms before birth but does not become capable of reproduction until it matures during puberty. Puberty lasts from about ages 12 to 18 years and is controlled by hormones. Q: What stage in human males lasts from about ages 12 to 18 years and is controlled by hormones? Choices: - childhood - adolescence - maturity - puberty A:
puberty