Answer:
The correct answer will be-True.
Explanation:
Scientists have tried to understand and explain the emergence of life by collecting the evidence that lived in the past which turned into fossils.
The scientists have predicted that earth was formed around 4.5 billion years ago but the first evidence of life belonged to 3.5 billion years ago. The earliest undisputed evidence was a microscopic organism which used sunlight, water and oxygen to synthesize the food and was known as cyanobacteria. These cyanobacteria formed fossils known as "stromatolites".
Recent studied found fossils of bacteria which were formed around 4.5 billion years ago when the earth was still hot and the climate was unstable.
Thus, it is true that fossils act as evidence to support that what were the first cell looked like.