You want to figure out more about the atmosphere of a new planet so you have measured the star's absorption spectrum during the planet's transit. Using the sample spectrum of elements and the spectrum from the star observed, which two elements would be found in the planet's atmosphere?

Question 17 options:

A)

Iron and oxygen

B)

Hydrogen and sodium

C)

Oxygen and magnesium

D)

Hydrogen and oxygen

NEED ANSWER ASAP

A

This question is hard! Your teachers aren't playing lol

Okay so considering the planet is right on the 500 mark and it is said to be full of iron, but the only option that has iron has oxygen and that is at the other end of the spectrum. Based on all the other answer chooses being completely unlikely, I am pretty confident that your answer is A

Explanation:

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the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation: