What will happen when both tubes are opened?
A. Nothing.

B. A vacuum will be created and the mercury level
will be the same in both tubes.

C. A vacuum will be created but the larger vacuum
space in the bubble tube will pull the mercury
further up the tube.

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.

dna is a set of a gene held together by a chemical bond

scientific consensus is : a general agreement among scientists about a scientific idea.

even though consensus implied general agreement, it doesn't mean unanimity. for example, scientists generally agree that meteor caused dinosaur's extinction. though this may not be proven yet, but it considered a consensus.

hope it