The rock on top of Mt. Everest is a shallow marine limestone deposited 200 million years ago. What does this tell us about the geologic history of the Himalayas?
- 200 million years ago Himalayas did not exist.
- The ocean level 200 million years was much higher than today.
- There was a high altitude lake in the Himalayas.
200 million years ago Himalayas did not exist.
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Discuss the conventional alternatives to fossil fuels. Why are we not using more renewables?
What will be an ideal response?
Which of the following describes the products formed by the dehydration of 2,2,4,4-tetramethyl-3-pentanol?
A) 2,2,4,4-tetramethyl-2-pentene is the only product. B) 2,2,4,4-tetramethyl-3-pentene is the only product. C) 2,2,4,4-tetramethyl-4-pentene is the only product. D) There is no product, since 2,2,4,4-tetramethyl-3-pentanol does not undergo dehydration.
Which of the following regions of the spectrum represent the Earth's atmospheric window?
A. infrared region B. polar regions C. visible region D. ultraviolet region
All of the following are macronutrients found in soil EXCEPT
A. Phosphorus B. Carbon dioxide C. Potassium D. Nitrogen