<span>C. A concave lens can only form a virtual image, because they are thinner in the middle and thicker around the edges.</span>
Answer:
fossil fuels are natural and limited, nuclear is man made and more toxic
Explanation:
Without the ability to measure, it would be difficult for scientists to conduct experiments or form theories. Not only is measurement important in science and the chemical industry, it is also essential in farming, engineering, construction, manufacturing, commerce, and numerous other occupations and activities.
Answer: The first one
Explanation: My best guess is in the pic attached. Hope this helps.