I think its b because its the one that the chemist is changing
Explanation:
The Sun and the planets formed together, 4.6 billion years ago, from a cloud of gas and dust called the solar nebula. A shock wave from a nearby supernova explosion probably initiated the collapse of the solar nebula. The Sun formed in the center, and the planets formed in a thin disk orbiting around it. In a similar manner, moons formed orbiting the gas giant planets.
Answer:
it will have taken hundreds of scientists many years to build and improve; ... is just an extension of weather forecasting, but focusing on changes over ... It remains one of the great mathematical challenges
Explanation:
The DNA base sequence carries the information a cell needs to assemble protein and RNA molecules.
Answer:
A normal type of white blood cell that has coarse granules within its cytoplasm.
