Interstellar space is filled with blackbody radiation that has a distribution peaking a his radiation is considered to be a remnant of the "big bang. wavelength of 970 um. what is the corresponding blackbody temperature of this radiation?

2.73 K

Explanation:

The Cosmic Microwave Background (CMB) radiation are a type of electromagnetic radiations that are released after the  explosion of the big bang. It propagates in all direction in space and is moving further with the expansion of the universe. They are not visible but they are helpful in estimating the age of the universe.

These radiations have a wavelength of about 970 μm (approximately 1 mm).

The temperature of the corresponding blackbody of this radiation is approximately 2.73 K(-270.42°C) and its extremely cold.

b would be the answer

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-the future of geothermal energy can pretty much be summed up with a single word: more

-scientists plan in going deeper than 120 meters

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