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2 years ago

How does the Grand Canyon help us understand about how the Earth’s Surface Changes AND why there are different types of rocks?

1 answer:

3 0

In the Grand Canyon, there are clear horizontal layers of different rocks that provide information about where, when, and how they were deposited, long before the canyon was even carved.

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True or false?<br> Excess water will not get into the water supply for human drinking water.

Andru [333]

I believe it’s True

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2 years ago

Short-winged fruit flies studied in the lab cannot fly because they have an allele that causes them to grow tiny wings (w). Norm

lana [24]

Answer: The probability of getting a short winged fruit fly in the F1 generation is 2/4 or 1/2.

Explanation:

By using a monohybrid punnett square you should be able to come to the same answer.

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3 years ago

Does nonpolar mean hydrophobic or hydrophilic

Lesechka [4]

no hydrophobic and hydrophilic refer to phospholipids in the cells membrane. A nonpolar molecule is a molecule which has no separation of charge, so no positive or negative poles are formed. In other words, the electrical charges of nonpolar molecules are evenly distributed across the molecule.

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3 years ago

What is the pH if 20 mL of pH = 2 solution is diluted to a final volume of 600 mL?

Mashutka [201]

Explanation:

Hydrogen atoms contain 1 proton and 1 electron while being devoid of neutrons. When they lose their electron they form an ion or H+, a particle carrying a unit of positive charge. pH measures how basic or acidic a water-based solutions are, with a formula for pH is

pH = -log[H+].

...where pH is -base 10 log of the concentration of hydrogen ions within the solution.

Initial volume= 20 mL

Final volume= 600 mL

# of dilutions= $\frac{600}{20}$ = 30

for a pH 2= [H+]= $10^{=2}$

∴ [H+]= $\frac{10^{-2}}{30} = 3.333 * 10^{-4}$

and pH is an antilog of [H+]= - log $\frac{10^{-2}}{30} = 3.333 * 10^{-4}$

∴pH = 3.47

Learn more about pH at brainly.com/question/4981491

Learn more about pKA at brainly.com/question/11062486

#LearnWithBrainly

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3 years ago

Retina, Iris, Pupil, Cornea, Lens, etc. How do these eye parts function?

Katena32 [7]

The functions of eyes parts are as follows:

Retina: The rays of light focused on the retina by the cornea and lens. The retina produces an image which is sent along the optic nerve of the brain.

Iris: It changes the size of pupil and allows different amount of life to enter the eyes.

Pupil: The light enters to the eyes through it.

Cornea: It forms the outer coating of the eyeball and covers the iris and pupil.

Lens:

3 0

3 years ago

Read 2 more answers

How does the Grand Canyon help us understand about how the Earth’s Surface Changes AND why there are different types of rocks?​

How does the Grand Canyon help us understand about how the Earth’s Surface Changes AND why there are different types of rocks?