Answer:
Interstellar medium
Explanation:
The interstellar medium (ISM) is the matter and radiation that exists in the space between the star systems in a galaxy. This matter includes gas in ionic, atomic, and molecular form, as well as dust and cosmic rays.
He improved and followed from the works of Luigi Galvani, which used a 'frog galvanoscope' as a prototype of measuring current. He recognized that a compass could actually measure current, given that it is placed near coil of wire.
Answer:

Explanation:
Force can be found by multiplying the mass and the acceleration.

The mass of the sled is 300 kilograms and the acceleration is 2 meters per second squared.

Multiply.

1 kilogram-meter per second squared is equal to 1 Newton. Therefore, 600 kilograms-meter per second squared is equal to 600 Newtons.

The force used on the sled is 600 Newtons.
Answer : The concentration of
(g) in parts per million is, 8 ppm
Explanation : Given,
Mass of oxygen gas (solute) = 0.008 g
Mass of water (solvent) = 1000 g
First we have to calculate the mass of solution.
Mass of solution = Mass of solute + Mass of solvent = 0.008 + 1000 = 1000.008 g
Now we have to calculate the concentration of
(g) in parts per million.
ppm : It is defined as the mass of solute present in one million
parts by mass of the solution.

Now put all the given values in this expression, we get

Therefore, the concentration of
(g) in parts per million is, 8 ppm
Sun emits lights
moon reflects light
lamp emits light
cloud reflects
mirror reflects light
firefly emits light
lightning emits light
tv set emits light