The force of gravity does.
Answer
Establishing laws
Explanations
The steps involved when performing a scientific research are;
• Making observations
• Forming a question after making an interesting observation, a scientist should find more about the concept identified.
• Forming a hypothesis
• Conducting the experiment
• Analyzing the data
• Drawing a conclusion
Answer:
B
Explanation:
Isotopes have the same number of protons but different number of neutrons.
This fixed percent is called the definite proportion. Specifically, this phenomenon is states in the Law of Definite Proportions. According to John Dalton, all the individual elements making up the compound has a fixed ratio, whether in mass or in moles. For example, for any amount of H₂O, there will always be a fixed proportion of 2 H atoms: 1 O atom.