What scientific instrument(s) can be used to detect and record the earth's movement in the rift zones of the ocean floor?

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?

During convection, less dense fluid rises and denser fluid sinks.

Acuvu time remaining 51: 04 there are two different alleles for flower color, p and p. the image shows a purple sweet pea that is labeled with its two alleles for petal color photo by christine matthews pp which is the genotype of the sweet pea? save and exit nex subs mark this and retum