Answer the following question given this paragraph: The most important way to keep your skin healthy is to protect it from ultraviolet light. Over-exposure to ultraviolet light can cause skin cancer. Keeping the skin clean can help prevent acne. Q: What is one major cause of skin cancer? Choices: - visible light - sunscreen - infrared light - ultraviolet light A:
ultraviolet light
(Question)
Answer the following question given this paragraph: Both the elephant and the boy are falling to the ground because of gravity. The force of gravity (F grav ) is greater for the elephant than it is for the boy because the elephant is much more massive. Nonetheless, both of them will reach the ground at the same time (assuming they fall from the same height at the same time and there is no air resistance. ). Q: If an elephant and a boy are falling towards the ground, who will land first? Choices: - the boy - neither will land - the elephant - both same time A:
(Answer)
both same time
Ques: Answer the following question given this paragraph: Nuclear fission is the splitting of the nucleus of a radioactive atom into two smaller nuclei. This type of reaction releases a great deal of energy from a very small amount of matter. Fission of a tiny pellet of radioactive uranium-235, like the one pictured in the Figure below , releases as much energy as burning 1,000 kilograms of coal!. Q: Splitting of the nucleus of a radioactive atom into two smaller nuclei yields what type of reaction, which releases a great deal of energy from a small amount of matter? Choices: - solar fission - nucleation - nuclear fusion - nuclear fission A:
Ans: nuclear fission
(Q).
Answer the following question given this paragraph: The frontal lobe is located at the front of the brain, over the eyes. This lobe contains the olfactory bulb, which processes smells. The frontal lobe also contains the motor cortex, which is important for planning and implementing movement. Areas within the motor cortex map to different muscle groups, and there is some organization to this map, as shown in Figure 35.22. For example, the neurons that control movement of the fingers are next to the neurons that control movement of the hand. Neurons in the frontal lobe also control cognitive functions like maintaining attention, speech, and decisionmaking. Studies of humans who have damaged their frontal lobes show that parts of this area are involved in personality, socialization, and assessing risk. Q: What is the bulb called in the frontal lobe that processes smells? Choices: - peripheral bulb - auditory bulb - sensory bulb - olfactory bulb A:
(A).
olfactory bulb
Ques:Answer the following question given this paragraph: There are 20 amino acids that make up proteins. With three bases per codon, there are 64 possible codons. This is more than enough to code for the 20 amino acids plus start and stop signals. You can see how to translate the genetic code in Figure below . Start at the center of the chart for the first base of each three-base codon. Then work your way out from the center for the second and third bases. Q: How many different amino acids make up proteins. Choices: - 14 - 25 - 30 - 20 A:

Ans:20
Ques:Answer the following question given this paragraph: Logging, mining, construction, and paving surfaces are some of the ways that soil erosion increases. Q: What is aggravated by practices such as logging, mining, construction, and paving surfaces? Choices: - global warming - seismic activity - water pollution - soil erosion A:

Ans:
soil erosion