Question

please reply me fast​

Answer 1

2) not

It is not true. Displacement can be zero but distance cannot be zero because distance is the total path covered but displacement is the shortst distance between the initial and final position. It can be zero at the end of one round

3) nahi pata hai

4) Examples of pure substances include iron, aluminum, silver, and gold.

Examples of mixture include the salt solution which is a 'mixture' of two components, salt, and water.

5) mitochondria

6) nucleus

hope it's useful for you (◠‿◕)