Question

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Answer 1

a) These telescopes must make observations above much of the water vapor in the atmosphere because water can block infrared rays.

Explanation:

Ground- based infrared telescopes are placed in a high altitudes dry climates because the telescopes must make observations above much of water vapor since they cut and block them off.

• Telescopes are devices that are used to observe very distant objects.
• An infrared telescope is sensitive to infrared rays.
• Infrared rays are part of the electromagnetic radiations.
• These rays are usually blocked off by the presence of water vapor.
• Desert areas that lacks water vapor in the atmosphere are the most desired for sighting such facilities.

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Answer 2

Answer:

THE ANSWER IS A

Explanation:

A)THESE TELESCOPES MUST MAKE OBSERVATIONS ABOVE MUCH OF THE WATER VAPOR IN THE ATMOSPHERE BECAUSE WATER CAN BLOCK INFRARED RAYS.