Which of the following can be considered fossils?
Aa 1 billion year-old rock.
Ba 1 billion year-old piece of amber.
Ca 1 billion year-old piece of amber with a primitive insect inside.
Dall of the above
Aa 1 billion year-old rock.
Ba 1 billion year-old piece of amber.
Ca 1 billion year-old piece of amber with a primitive insect inside.
Dall of the above
