Igneous rocks that cool more quickly have smaller mineral crystals, while igneous rocks that cool more slowly have larger mineral crystals. how would a rock that formed from lava cooling on the earth's surface compare with a rock that formed from magma cooling deep in the earth's crust? a. the rock that formed from lava would have larger crystals than the rock that formed from magma. b. crystal size would be very small and identical in both rocks. c. crystal size would be very large and identical in both rocks. d. the rock that formed from lava would have smaller crystals than the rock that formed from magma.

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u.s. and mexico. the st. lawrence seaway provides an important trading route for the u.s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

45 points how are people today being protected from tsunamis? earthquake data is analyzed to detemrine if a tsunami is likely, and if so, warnings are sent out. areas in tsunami risk zones are no longer heavily populated. radar is used to measure wave heights regularly. meteorologists study the winds to determine if wave heights will be large.

One of the newest applications of cell technology is called cybrid embryos. this process involves replacing the nuclear material of an animal cell with human nuclear material. how might this process affect public policies about research by using stem cells? the same policies and concerns about the use of human embryonic stem cells would most likely apply. the embryos would most likely be treated like traditional animal embryos and regulated accordingly. the process of forming cybrid embryos would most likely be banned by government regulators. the embryos would be treated as regular cells because they are not fully human in origin.