Option C, The relative dating was done incorrectly.
Explanation:
As it is mentioned here in the description that scientist know that the actual age of rocks must be 2.5 billion years and this age of the rock must have been derived through some methodology of radioactive dating. Now since the potassium-argon method was used three times and it depicted the same result every time stating that the age of rocks is 1.3 billion years. Therefore there are high chances that earlier method used that estimated the age of rock as 2.5 billion years must be wrong.
Manufacturers add sugars to their cigarette sometimes in the form of honey, etc. This makes cigarettes more enjoyable, particular and addictive in a way.
So basically water is a polar molicule. So when it comes to the structure, water is able to form many hydrogen bonds and the way the atoms are able to bond together adds to the water's special properties.
Option C is the basic definition of a species. Can you think of some examples of plants or animals that satisfy A, B, or C that are not the same species?
The first layer is the crust, a skin of rock covering the planet. The core that Lehman had found was the Earth's inner core. The core that Richard Oldem had discovered turned out to be the Earth's outer core.