2. What blood pressure reading constitutes high blood pressure, or hypertension? Why is hypertension dangerous?

What is the difference between a joint and a fault? a)a joint is formed by confining pressure. b)a joint is formed by differential stress but a fault is not. c)a fault is formed by tension but a joint is formed by compression. d)a fault displaces the rocks on one side relative to another.

Avirus consisting of a single strand of rna, which is transcribed into complementary dna, is a ) proteaseb) retrovirusc) rna replicase virusd) nonenveloped virus

Is tea good for you? if so what type of tea is good for you? and how much should i drink before it is a threat to my health?