Answer:
1:b 2:12354 3:b 4:c 5:d 6:b 7:a 8:b 9:c 10:C 11:d 12:c 13:d 14: a 15:c
Explanation:
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The moon reflects light from the Sun, and the sun shines on the planets :)
Answer:
Invasive species also have the potential to disrupt vital ecosystem functions, such as water flow, nutrient cycling, fire systems, or soil composition. An example of this is the Tamarix species. It not only uses large amounts of water, it changes the soil chemistry, making it more saline.
Explanation:
Answer:
Cancer is caused by accumulated damage to genes. Such changes may be due to chance or to exposure to a cancer causing substance. The substances that cause cancer are called carcinogens. Occupational risk factors, including carcinogens such as many chemicals, radioactive materials and asbestos.
Explanation:
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