What is special about nitrogen, and what is its main function in the atmosphere

Answers

Answer 1
Answer: Nitrogen is essential to life. It is a component of all proteins and can be found in all living organisms. Nitrogen in the atmosphere. The molecules of nitrogen in the atmosphere can become usable for living things when they are broken apart during lightning strikes or fires, by certain types of bacteria, or by bacteria associated with bean plants.

Related Questions

Q2. In a 4x100 mrelay race, total track length is 200m and time taken by one particular group is 50.2 s. What is the average speed and average velocity of that group?
Find the equivalent resistance in the circuit between A and B ​
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Does heating a cup ofWater allow it to dissolve more sugar ? Constant
6. A golf ball is hit a distance of 300 yards in 10 sec. What is the speed of the golf ballo

The strength of the force of gravity between two objects depend on?

Answers

Exactly two things:

1).  The product of the two masses.

2).  The distance between the centers of the two objects.

Comments:

-- It doesn't matter whether the objects have nearly the same mass, or whether
one is huge and the other one is tiny.  It's their product that counts.
The Earth pulls you toward it with the same force as you pull the Earth toward you.
The Earth's weight on you is the same as your weight on the Earth.

-- The force of gravity between two objects doesn't depend on anything between
them.  There's no way to block gravity or shield anything from it.

A temperature reading of zero on the Celsius scale is equal to absolute zero. True or False? If False explain why ??

( Subject: Science )

^0^

Answers

No, that's false.  'Zero' on the Celsius scale
is 273 on the absolute scale.
False.

Absolute zero is actually 0 Kelvin.

Absolute zero is = -273°C, and not 0°C.

0 k = -273°C

A kitten pushes a ball of yarn rolling toward it at 1.00 cm/s with its nose, displacing the ball of yarn 17.5 cm in the opposite direction in 2.00 s. What is the acceleration of the ball of yarn?

Answers

The problem is very unclear.  The way I understand it is like this: 
The yarn is rolling toward the cat, and from the instant the cat first touches
the yarn, it moves 17.5 cm 2 sec, in the direction opposite to the way it was
rolling.

Average speed during the 2 seconds after the bump = 17.5 / 2 = 8.75 cm/s .

Average speed = (1/2) (final speed away from the cat - 1 cm/sec towards the cat)

8.75 cm/s = (1/2) (final speed + 1)
Multiply each side by 2 :
17.5 = final speed + 1
Final speed = 16.5 cm/s

Acceleration = (change in speed) / (time for the change)

Acceleration = (16.5 + 1) / (20) = 0.875 cm/s² .


My confidence level in this one is not excessive, but I'll submit it anyway,
and somebody else can explain to me where I went wrong.



Answer this please. thanks in advance!! please tel me                                                                 a christmas tree lights are set up in series1. a set of lights has 50 bulbs  what will be the voltage across each bulb?
show your working out.

Answers

If 50 identical light bulbs are connected in series across
a single power source, then the voltage across each bulb
is ( 1/50 ) of the voltage delivered by the power source.
Presuming that this tree is connected into a mains power source in the UK. The total output of the UK mains source is 230V. So if we share this voltage equally between 50 bulbs:
230V / 50 = 4.6V

I'm not 100 per cent sure this is correct though and different countries may have different mains power supplies. Hope it helps anyway.

EDIT: This also does not take into account resistance in the bulbs and wires but is all I can tell you from the information provided in the question.

The sun's apparent motion across the sky from East to West daily is due to theA) rotation of the sun.
B) rotation of the earth.
C) orbit of the earth around the sun.
D) orbit of the sun around the earth.

Answers

Rotation of the Earth contributes to the idea of the Sun setting and rising. The orbit of the Earth around the Sun results in the changing of seasons.

How can working together help scientist achieve their goals?

Answers

When scientists work together it helps them achieve their goals when they share different ideas with eachother