Because frame of reference decides are your forces positive or negative. It is important for the direction of motion.
Maybe number 4 could help.
The measure of how much salt will dissolve into 100g of water is _solution_ .
Answer:
C
Explanation:
Hypothesis is one of the science methods. Hypothesis is the same as guessing. It's a scientific method that precedes observations.
According to the question asking that Which of the following is a hypothesis ?
The correct option is C which is
If a squid is attacked by a predator, it will squirt ink
It is an hypothesis because there is no experimental evidence to back it up.