Roughness of the surface and weight of the object.
Answer:
it can be revised at any time.
Explanation:
you will use methyl orange to check the pH of a coloured solution
hope it helps
Brainliest?
Answer:
The nervous system helps all the parts of the body to communicate with each other. It also reacts to changes both outside and inside the body. The nervous system uses both electrical and chemical means to send and receive messages
Explanation:
It has 19 electrons. I hope this helps.
