Which particles move around the nucleus in an atom? neutrons electrons protons positrons

Robert wants to know which fertilizer will work the best for his grass. what can he do to explore this inquiry?

The picture showed normal blood cells which are around and sickle cells which appear much longer people with sickle-cell suffer from the sickle cell anemia which is inherited diseaseit is caused by a change in gene responsible for production of hemo goblin this type of change is known as an

Overtime the pond slowly becomes more acidic due to the release of chemicals from a nearby factory. which of the organisms would most likely survive the change to their environment?