<span>The answer is letter C.
Reflecting telescopes are more powerful than refracting telescopes. These are also called as reflectors which serves an optical telescope that uses a single or combination of curved mirrors. These mirrors then reflect light and form an image. It is designed for very large diameter objects and are mostly considered as major telescopes in the field of astronomy. They were used as an alternative for refracting telescopes during the 17th century because they suffer less chromatic aberrations than a refracting telescope does. <span>
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Answer: 7th Century BC
Explanation:my teacher told me
Answer:
No
Explanation:
Gold is primarily found as a pure, native metal. Sylvanite and calaverite are gold-bearing minerals. Gold is usually found embedded in quartz veins, or placer stream gravel. It is mined in South Africa, the USA (Nevada, Alaska), Russia, Australia, and Canada. Quartz is a type of igneous rock and Sylvanite and calaverite are a type of rare metal, which when heated, leaves behind gold or gold-silver. So, simply put, no, you cannot find gold in sedimentary rocks.
