Answer the following question given this paragraph: In a fullerene, carbon atoms are bonded to three other atoms in a soccer ball pattern. The bonds are weak, so fullerenes can dissolve and form solutions. Q: In a fullerene, what atoms are bonded to three other atoms in a soccer ball pattern? Choices: - hydrogen - oxygen - positive - carbon A:
carbon
(Question)
Answer the following question given this paragraph: Acceleration is the rate of change of velocity. So in other words, acceleration tells you how quickly the velocity is increasing or decreasing. An acceleration of indicates that the velocity is increasing by in the positive direction every second. Q: What is the rate of change of velocity called? Choices: - transmission - vibration - speed - acceleration A:
(Answer)
acceleration
Ques: Answer the following question given this paragraph: An electron is a particle outside the nucleus of an atom that has a negative electric charge. The charge of an electron is opposite but equal to the charge of a proton. Atoms have the same number of electrons as protons. As a result, the negative and positive charges "cancel out. " This makes atoms electrically neutral. For example, a carbon atom has six electrons that "cancel out" its six protons. Q: What is the term for a particle outside the nucleus of an atom that has a negative electric charge? Choices: - proton - ion - neutron - electron A:
Ans: electron
(Q).
Answer the following question given this paragraph: A puddle of water left undisturbed eventually disappears. The liquid molecules escape into the gas phase, becoming water vapor. Vaporization is the process in which a liquid is converted to a gas. Evaporation is the conversion of a liquid to its vapor below the boiling temperature of the liquid. If the water is instead kept in a closed container, the water vapor molecules do not have a chance to escape into the surroundings and so the water level does not change. As some water molecules become vapor, an equal number of water vapor molecules condense back into the liquid state. Condensation is the change of state from a gas to a liquid. Q: What is the change of state from a gas to a liquid? Choices: - vaporation - combustion - fermentation - condensation A:
(A).
condensation
Ques:Answer the following question given this paragraph: the current. Capacitors can be used to filter out low frequencies. For example, a capacitor in series with a sound reproduction system rids it of the 60 Hz hum. Q: Capacitors can be used to filter out low frequencies. for example, a capacitor in series with a sound reproduction system rids it of the 60 hz what? Choices: - white noise - vibration - echo - hum A:

Ans:hum
Ques:Answer the following question given this paragraph: Near-Earth asteroids have orbits that cross Earth's orbit. This means that they can collide with Earth. There are over 4,500 known near-Earth asteroids. Small asteroids do sometimes collide with Earth. An asteroid about 510 m in diameter hits about once per year. Five hundred to a thousand of the known near-Earth asteroids are much bigger. They are over 1 kilometer in diameter. When large asteroids hit Earth in the past, many organisms died. At times, many species became extinct. Astronomers keep looking for near-Earth asteroids. They hope to predict a possible collision early so they can to try to stop it. Q: In the past, what colliding with planet earth has caused many organisms to die off? Choices: - acid rain - meteorites - the Sun - asteroids A:

Ans:
asteroids