Answer:
The answer is statement 1, 2, and 3
Explanation:
A hypothesis is a starting point for further investigation, therefore a hypothesis will always be a possibility at least until it is tested.
Variable is a factor that is liable to vary or change.
A hypothesis without being tested is merely a statement or an explanation made on the basis of limited evidence. Therefore it is unsure whether the said statement is true or not.
A hypothesis can still be proven by further investigation with different variables
A Butterfly has Four Stages
The best and most correct answer provided by the question is HBr, the most powerful and dangerous acid. I hope my answer has come to your help. hope this helps and have a nice day!
Pi and sigma bonds
Pi is double bonds and sigma is single bonds