Plastic building blocks are good for building molecules because of some useful properties which they possess. For instance, plastic are flexible, they can be easily manipulated and can be made into any shape, size and combination. They can also be produced using different colors. Because of these features, they can be used to build and to explain how molecules behave.
Nitrogen gas consists of a diatomic nitrogen atom. So, the correct answer is B.
The water cycle ...........
Answer:
yes they are same thing by E=MC^2 EINSTEIN'S EQUATION
