The answer is B because solids have a definite shape and volume
It is A. a refrigerator cause a alternating current is current that doesn't stop and the refrigerator is plug into the wall.
1- You should always have a question for your experiment.
2- You need to conduct background research. It helps to write down your sources so you can cite your references.
3- Propose a hypothesis (educated guess on what you believe the outcome of the experiment will be)
4- Design and perform an experiment to test your hypothesis (include independent and dependent variable)
5- Record observations and analyze what the data means.
6- Conclude whether you need to accept or reject your hypothesis, which accepting means your hypothesis was right and rejected is if it was wrong.
Answer:
For example, the rain water does not have any salinity, except the small quantity due to the atmosphere, while the sea water has a very high salinity.
hope this helps you friend
