Answer the following question given this paragraph: Figure 29.17 shows a comet with two prominent tails. What most people do not know about the tails is that they always point away from the Sun rather than trailing behind the comet (like the tail of Bo Peep's sheep). Comet tails are composed of gases and dust evaporated from the body of the comet and ionized gas. The dust particles recoil away from the Sun when photons scatter from them. Evidently, photons carry momentum in the direction of their motion (away from the Sun), and some of this momentum is transferred to dust particles in collisions. Gas atoms and molecules in the blue tail are most affected by other particles of radiation, such as protons and electrons emanating from the Sun, rather than by the momentum of photons. Q: Why do comet tails always point away from the sun instead of trailing behind the comet? Choices: - dust particles attract - dust particles evaporate - dust particles liquify - dust particles recoil A:
dust particles recoil
(Question)
Answer the following question given this paragraph: Glaciers are incredibly powerful agents of erosion. Q: Glaciers are incredibly powerful agents of what? Choices: - climate change - insulation - extinction - erosion A:
(Answer)
erosion
Ques: Answer the following question given this paragraph: Humus is the decayed remains of living organisms. Humus makes soil fertile. Q: What is the term for the decayed remains of living organisms? Choices: - waste - necrosis - intermediate material - humus A:
Ans: humus
(Q).
Answer the following question given this paragraph: For a long time, scientists classified fungi as members of the Plant Kingdom. Fungi share several obvious traits with plants. For example, both fungi and plants lack the ability to move. Both grow in soil, and both have cell walls. Some fungi even look like plants. Q: What group of organisms was initially misclassified as plants because they also lack the ability to move, grow in soil, and have cell walls? Choices: - protozoa - algae - gymnosperm - fungi A:
(A).
fungi
Ques:Answer the following question given this paragraph: Connections of Proteins to Glucose Metabolism Proteins are broken down by a variety of enzymes in cells. Most of the time, amino acids are recycled into new proteins. If there are excess amino acids, however, or if the body is in a state of famine, some amino acids will be shunted into pathways of glucose catabolism. Each amino acid must have its amino group removed prior to entry into these pathways. The amino group is converted into ammonia. In mammals, the liver synthesizes urea from two ammonia molecules and a carbon dioxide molecule. Thus, urea is the principal waste product in mammals from the nitrogen originating in amino acids, and it leaves the body in urine. Q: Amino acids broken down by metabolic process are mostly recycled into new what? Choices: - lipids - hormones - enzymes - proteins A:

Ans:proteins
Answer the following question given this paragraph: STIs are diseases caused by pathogens that spread through sexual contact. Q: What spreads sti during sexual contact? Choices: - parasites - blood - viruses - pathogens A:
pathogens