The smallest unit of a substance that cannot be broken down further and maintain its properties is known as which of the following? biotic
element
abiotic
molecule

North atlantic current or north atlantic drift is the answer

Answer:   d.  carbon dioxide.

Idon't mean to be a smart alec, length of atoms' bonds is the simplest way to define it.

1. why does the same side of the moon always face earthc.the rotational period of the moon is equal to one revolution around earth2. which is greater the moons period of rotation or its period of revolution  b.the moons revolution period around earth3.what was the major accomplishment of the apollo missions  d.landing on and exploring the moon4. which of these space missions involved the deployment of lunar rovers d.apollo5. which scientists are going to explore next on kepler-186fd. evidence of existence of life6.which mission is not going to explore the outside of the solar systemb.safir7.which technology limit the future of space exploration b. scientist must first develop certain technologies before missions can be completed.