Answer:
Neptune
Explanation:
The solar system is made up of the sun with its associated planets, asteroids, meteors, satellites (i.e.,moons), and comets orbits around it. The Sun is a yellow dwarf star. Its gravity holds the solar system together, keeping everything in its orbit.
Although Neptune travels at a very high speed of 5.43 km/s, Neptune still has the slowest orbital velocity of any of the planets.
1) It allows for international cooperation. This means that for example, you can understand and work with other people's results, you can cooperate with other people in production of goods (if you produce one part of something and they produce another) and you can repeat their experiments to see if their results were sound
2) It reduces errors caused by not rigorous measurement: a common measurement supports more exact specification of the measuring units, since many people work towards specifying it exactly.
B is the answer to your question
Answer:
1
Explanation:
Electrolysis is the passing of an current through a conducting solution, when the occurs, a chemical reaction takes place.
Heating a chemical will always cause a chemical reaction, which is why 3 is also correct
Some information as to why 2 is NOT correct.
2 is NOT a chemical reaction, but rather a process of physical separation. It uses selective boiling and condensation, but is not considered a chemical reaction.
as with 3, heating is not considered a chemical reaction, but rather a physical temperature change. This is always what it is considered to be (e.g boiling water is a physical temperature change, not a chemical reaction)
Hope this helps.
Hope this helps.