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vladimir2022 [97]
3 years ago
12

Define hydrogen bonds

Biology
1 answer:
Charra [1.4K]3 years ago
3 0
Define hydrogen bonds( It a weak bond between two molecules) one molecules and goes to electronegative to another.
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Explanation:

Red-shift

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Light from a star does not contain all the wavelengths of the electromagnetic spectrum. Elements in the star absorb some of the emitted wavelengths, so dark lines are present when the spectrum is analysed. Different elements produce different patterns of dark lines. The diagram shows part of the emission spectrum of light from the Sun.

A gradient colour spectrum of the sun.

Spectra from distant galaxies

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