Explanation:
In liquids, force of attraction between the molecules is less as compared to solids but force of attraction between the molecules is more strong as compared to gases.
Also, liquids do not have any definite shape and they acquire the shape or container or vessel in which they are placed.
Therefore, when a liquid is simply transferred from one container to another container then its volume remains the same.
Answer:
Legs are the 2nd class lever.
Arms are the 3rd class lever.
Explanation:
A lever is an inflexible body fit for turning on a point on itself. There are three types of lever
1) 1st class lever: (pivot is in the center of load and effort)
In the human body are uncommon. One model is the joint between the head and the principal vertebra
2) 2nd class lever: (load is in the center of pivot and effort)
In the human body, the 2nd class lever is found in the lower leg when somebody remains on tiptoes.
3) 3rd class lever: (The load is far from the pivot than the effort.)
In the human body; one model can be delineated in the elbow joint