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rosijanka [135]
3 years ago
6

How can we use spectral lines of light coming from the superclusters to identify which is receding from Earth at the slowest rat

e.
Biology
1 answer:
liraira [26]3 years ago
8 0

The answer is; they use the Doppler shift effect.

The stars that are in the red spectrum of color are moving away from the observer while those in blue spectrum light are moving closer to the observer.  This is because objects moving away from you shift to longer frequencies while those moving towards you to shift to shorter wavelengths.

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Explain how water, glucose and mineral salts are transported through a plant
spayn [35]

Answer:

Plants have tissues to transport water, nutrients and minerals. Xylem transports water and mineral salts from the roots up to other parts of the plant, while phloem transports sucrose and amino acids between the leaves and other parts of the plant.

 

pls mark brainliest. Thank you

8 0
2 years ago
Which change will most likely occur in the future, based on the current consumption of ground water O A. The polar Ice caps will
uranmaximum [27]

Answer: C. Fresh water will become limited in the United States.

Explanation:

were all going to die of dehydration in the future :)

4 0
2 years ago
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Calculate the molarity of 0.75 L of a solution containing 0.83 g of dissolved KCI. A 0.015 M B 0.75 M C 1.1 M D 6.2​
marissa [1.9K]

Answer:

A 0.015M

Explanation:

Molarity, which refers to the molar concentration of a solution, can be calculated using the formula:

Molarity (M) = mole (n) / volume (L)

Based on the information provided in this question, the solution contains 0.83 g of dissolved KCI.

We can calculate the number of moles of KCl in the solution by using the formula:

Mole = mass ÷ molar mass

Where atomic mass of; K = 39, Cl = 35.5

Molar Mass of KCl = 39 + 35.5

= 74.5g/mol.

Mole = 0.83g/74.5g/mol.

mole = 0.01114

Approximately, n = 0.011mol

Hence, molarity = 0.011mol/0.75L

Molarity = 0.0146

Molarity = 0.015M

8 0
3 years ago
What type of cell is mostly square or rectangular shaped? *
Ganezh [65]

Answer:

It would be >> C plant cells

4 0
3 years ago
What is the job of the nucleus?
never [62]

Answer:

It controls what the cells are doing and carries your genes. It acts as the brain of a cell.

Explanation:

4 0
3 years ago
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