A is the answer.
Ice is solid, however, water is liquid. Yet ice still floats which is less dense than water.
Hope this helps!
Answer:
Example of a scientific question:
Does the angle of a ramp change the distance a toy car will travel?
Explanation:
Answer:
B is the correct answer
Explanation:
If this answer is correct plzz mark me as brainliest plzzzz
Answer:
Option E, Half life = 
Explanation:
For a first order reaction, rate constant and half-life is related as:

Where,
= Half life
k = Rate constant
Rate constant given = 


So, the correct option is option E.