Answer the following question given this paragraph: Q: Banging on a drum is an example of which type of energy? Choices: - solar. - molecular - potential - mechanical A:
mechanical
Answer the following question given this paragraph: One of the fundamental laws of chemistry deals with the fact that we cannot (using chemical means) create or destroy matter. When a reaction is run, the number of atoms of each specific type must be the same on both sides of the equation. For some materials, it turns out that one element can combine with a second element in more than one ratio. Carrying out mass ratio calculations helped establish the law of multiple proportions. Q: One of the fundamental laws of chemistry deals with the fact that we cannot create or destroy what? Choices: - time - protein - stars - matter A:
matter
Q: Answer the following question given this paragraph: Equinox comes halfway between the two solstices. At equinoxes, the Sun's rays shine most directly at the Equator ( Figure below ). The daylight and nighttime hours are exactly equal on an equinox. The autumnal, or fall, equinox happens on September 22 or 23. The vernal, or spring, equinox happens March 21 or 22 in the Northern Hemisphere. Q: What event occurs between the two solstices? Choices: - Christmas - summer - Leap Year - equinox A:
A: equinox
Question: Answer the following question given this paragraph: Most of the world's largest mountains form as plates collide at convergent plate boundaries. Continents are too buoyant to get pushed down into the mantle. So when the plates smash together, the crust crumples upwards. This creates mountains. Folding and faulting in these collision zones makes the crust thicker. Q: Why are continents unable to be pushed down into the mantle by plate boundaries? Choices: - gravity - surface tension - density - buoyancy A:
Answer: buoyancy
*Question*
Answer the following question given this paragraph: Objects in motion that return to the same position after a fixed period of time are said to be in harmonic motion. Objects in harmonic motion have the ability to transfer some of their energy over large distances. They do so by creating waves in a medium. Imagine pushing up and down on the surface of a bathtub filled with water. Water acts as the medium that carries energy from your hand to the edges of the bathtub. Waves transfer energy over a distance without direct contact of the initial source. In this sense waves are phenomena not objects. Q: Objects in motion that return to the same position after a fixed period of time are said to be in what type of motion? Choices: - circular - curving - dynamic - harmonic A:
**Answer**
harmonic
Q: Answer the following question given this paragraph: Figure 19.4 Survivorship curves show the distribution of individuals in a population according to age. Humans and most mammals have a Type I survivorship curve, because death primarily occurs in the older years. Birds have a Type II survivorship curve, as death at any age is equally probable. Trees have a Type III survivorship curve because very few survive the younger years, but after a certain age, individuals are much more likely to survive. Q: Survivorship curves show the distribution of individuals in a population according to what metric? Choices: - weight - height - birth rate - age A:
A: age