HELP!!! (01.01 LC) What is a scientific method?

A. A system for conducting a scientific investigation

B. A method that is biased

C. A system which constitutes a single step

D. A method based on moral beliefs​

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a

What is the subscript for oxygen in its molecular formula