The action in which particles go from a high area of concentration to a lower concentration is called diffusion!
Answer:
Explanation:
america is most affected and this countries death toll is rising day by day and least country which had nonly 50 to 60 cases are kashmir and china i think crona is gone china just see after the lock down more people are affected fro this virus as you all see the news
Explanation:
D. actin and myosin interact by the sliding filament mechanism.