1.) similar fossils were found on different continents.
2.)the continents seemed to fit together; they were like a spread apart puzzle.
3.)geographical features and mountain ranges lined up with the same rock composition
4.)glacier grooves in rocks led him to trace them out to where they started
:)
In chemical reactions the substances present at the start of the reaction are reactant and the substances produced are called product
They are the basic units of structure because they are the smallest unit of life. you cant go any further. also they make up every living thing from prokaryote to eukaryote.
Answer:
To carry out photosynthesis plants need four things: chloroplasts, light, water and carbon dioxide. Hope this helps!
Explanation:
