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3 years ago

Is the air around us organic

2 answers:

4 0

Organic air? The definition of organic (from google) is: of, relating to, or derived from living matter. Air isn't living matter. Air can come from plants that are made from organic substances... Gases can pollute our air... but from my knowledge, I don't believe there that there is 'organic air'

muminat3 years ago

4 0

No,Air is about 78% Nitrogen and 21% Oxygen. The other 1% are random molecules that probably contain carbon. For something to be organic it must contain carbon. It is inorganic if it does not contain carbon.

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A camera takes a properly exposed photo with a 4.0 mm diameter aperture and a shutter speed of 1/1000 s. If the photographer foc

hoa [83]

Answer:

option E

Explanation:

given,

diameter = 4 mm

shutter speed = 1/1000 s

diameter of aperture = ?

shutter speed = 1/250 s

exposure time to the shutter time

$E V = log_2(\dfrac{N^2}{t})$

N is the diameter of the aperture and t is the time of exposure

now,

$log_2(\dfrac{N^2}{t_1})=log_2(\dfrac{N^2}{t_2})$

$\dfrac{N_1^2}{t_1}=\dfrac{N_2^2}{t_2}$

inserting all the values

$\dfrac{4^2}{1000}=\dfrac{N_2^2}{250}$

N₂² = 4

N₂ = 2 mm

hence , the correct answer is option E

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3 years ago

Is jewelry gold a compound or mixture?

USPshnik [31]

I think it’s a mixture.

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3 years ago

Read 2 more answers

What is the importance of star ranting labelilling of an electrical appliance?

Misha Larkins [42]

Answer:

The standard of efficiency varies by product category

these are called BEE star label and they show how much electricity the appliance consumes in year each appliance gets btw one and five stars with five stars meaning that it's extremely efficienct andis likely to keep your electricity bills in check

 hope it's helpful

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3 years ago

How did Aristotle's inability to detect parallax lead him to propose a geocentric model of the Solar System.

sasho [114]

He reasoned that since parallax could not be observed for celestial objects near the sun, then the earth was stationary. This erroneous assumption was because at the time he had no way of knowing that celestial objects were so far away that their parallax angles were too small to detect.

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Answer these questions plz

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3 years ago