The fossil at point X has been dated to be 65 million years old. What can relative dating indicate about the fossil at point Y?

Environmental effects of the impact of a meteorite 66.4 million years ago may have led to the extinction of many species on Earth. Which evidence supports this theory?
What is the center of our Solar System?
What force pulls objects towards the Earth?
What do plants need to make their own food?
How many states of matter are there and what are they?
What part of the plant absorbs water and nutrients from the soil?