What is a half-life? question 2 options: half the time it takes for an organism to become extinct the spontaneous breakdown of atomic nuclei the time it takes for half a radioactive sample to decay atoms of the same element with a different number of neutrons

Study the image. which feature is modeled in the diagram? check all that apply. 1 a convergent boundary is formed. 2 continental plates are colliding. 3 two plates are forming a divergent boundary. 4 continental plates are sliding past each other. 5 several mid-ocean ridges are formed on earth’s surface.

Find the area of the shaded region.

Which characteristics of temperature and salinity have the greatest influence on the movement of deep-ocean currentsa. warm and low salinityb. cold and high salinityc. cold and low salinityd. warm and high salinity