fun fact for today a humming bird can remember the last time they went to a flower so they do not go to it for 2 days but after a whole day they visited over 500 flowers.So, they remember the 100 flowers that they have visited already that are spreaded out. Nobody really knows how a humming bird with a very small brain can do that.
The plants look green because the plant reflects the green light. So the plants absorbed every kind of light except green. Then if the green light were blocked, the photosynthesis will not be effected just because the green light does not involved in the photosynthesis.
Answer:
She can conclude that the reaction started with three nitrogen atoms because she can be based in the law of conservation of matter which states that the amount of matter in a system is conserved: there were three atoms of nitrogen in the reactants and they produced three atoms of nitrogen.
Explanation:
In science, a law is a general statement that explains a large number of observations. One law that provides the foundation for understanding in chemistry is the law of conservation of matter: it states that in any given system that is closed to the transfer of matter (in and out), the amount of matter in the system stays constant, or in other words, the amount of matter in a system is conserved.
So, in this case, for Marcia to conclude that the reaction started with three nitrogen atoms, she can be based in the law of conservation of matter, and because the matter of that system is conserved, there were three atoms of nitrogen in the reactants and they produced three atoms of nitrogen.
I think the first one is b