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2 years ago

1 point

Biology

1 answer:

Lelu [443]2 years ago

5 0

Answer:

The sun is 400x wider than the moon, but the moon is also 400x closer to the Earth

Explanation:

Although the the sun is roughly 400x wider than the moon, the moon is aproximately 400x closer to the Earth, and that is why seen from earth, sun and the moon appear to be the same size.

So answer is the sun is 400x wider than the moon, but the moon is also 400x closer to the Earth.

EXTRA:

There is a fenomenom called <em>blood moon</em>, when that happens, the moon appears to be bigger then normal (and it has a red glow about it).

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When solar radiation enters Earth’s atmosphere, about 23 percent is absorbed in the atmosphere and about 48 percent is absorbed

Vlad [161]

I think Earth’s atmosphere plus atmosphere. So, 23+48=71. So, the answer is A

8 0

2 years ago

On the pH scale, acids fall between ____ and bases fall between

skelet666 [1.2K]

Answer:

The correct answer is - O and 6.9; 7.1 and 14

Explanation:

A measuring scale that tells about the acidity or basicity or alkaline nature of a particular object or solution is possible with the help of a pH scale that measures how acidic or basic a solution or object is.

It ranges between 0 to 14. pH less than 7 or ranging from 0.0 to 6.9 is acidic and more than 7 or from 7.1 to 14.0 is basic or alkaline in nature. A measure of the relative amount of H+ ion and OH- ions in water is pH.

3 0

2 years ago

For the reaction C6H 1206C02+ H208 428 g of C6 H 1206 is consumed producing a 3.1 M solution of CO2 what is the volume of CO2 pr

timofeeve [1]

I think it’s m(C6H12O6) = 856 g

M(C6H12O6) = 12*6+1*12+16*6 = 180 g/mol

n(C6H12O6) = m/M = 856 g / 180 g/mol = 4.756 mol

n(CO2) = 6*4.756 = 28.536 mol

M(CO2) = 12+16*2 = 44 g/mol

m(CO2) = n*M = 28.536mol*44g/mol = 1255.584 g

7 0

3 years ago

Plant roots can be fibrous or a taproot. When there is not enough water in the environment some plants send their taproot furthe

kykrilka [37]

Answer:

Explanation:

the answer is B

5 0

2 years ago

List the quantum numbers associated with all of the 5d orbitals

Whitepunk [10]

Answer:

Here's what I get

Explanation:

If the orbital is 5d, n = 5 and l=2.

mₗ = -l, -l + 1, -l + 2, …., l

(mₛ is a quantum number for electrons)

Thus, we can have the following combinations.

$\begin{array}{ccr}\mathbf{n} & \mathbf{l} & \mathbf{m_{l}}\\5 & 2 & -2\\5 & 2 & -1\\5 & 2 & 0\\5 & 2 & 1\\5 & 2 & 2\\\end{array}$

That makes a total of five 5d orbitals.

The pictures below show what two of them look like.

6 0

2 years ago