The move because of the intense heat in the Earths core, that causes molten rock in the layer, called the mantle, to move. There are 4 different plates; collision, conservative, constructive and destructive. Hope this helped <3
For a medication to be maintained at the proper blood level, it must be given at the right time. The correct option among all the options that are given in the question is the third option or option "c". Timing of the medication is of immense importance and this will help to get to the right kind of result for the patient.
Answer:
That is much less often than in the last 150 million years, when the field has flipped every 600,000 years. In the last 10-20 million years it has sped up even more, to once every 200,000-250,000 years. "The evidence points to a more stable field in the very far past and fewer reversals," says Veikkolainen.