If you think about it, irregular galaxies dont really have a describable shape, as you can tell by the name. So B.
One thing I think we must put in the capsule is our pictures. Very necessary, so that other inhabitants would see how we look like.
Answer:
The reagents correspond to substances that react with others, generating a chemical reaction.
Explanation:
Example:
H2 + 02 -> H202
Hydrogen reacts with oxygen in a synthesis reaction, forming a new compound (hydrogen peroxide) called a product.
Carbon isn’t because all the others on the list are naturally made apart from carbon which is man made because of all the pollution . X
S.I. Unit of mass is Kilogram which is denoted by Kg
In short, Your Answer would be Option C
Hope this helps!