<h2>12km</h2>
<em><u>Explanation:</u></em>
1 cm = 4 km
3 cm = 4×3 km
= 12 km
<h2>follow me</h2>
<span> the British reaction to Amritsar – the officer commanding British troops at Amritsar, General Dyer, was simply allowed to resign his commission after an inquiry criticised his leadership during the riot. Many national Indians felt that he, and others in the army, had got away very lightly. The more radical Indians felt that the British government had all but sanctioned murder. </span>
Answer:
because it permits certain movement of molecules in and out of the cell
Hydrosphere and atmosphere. those are the only 2 spheres that interact with each other in the air.
