During the rock cycle, cooling magma and lava from igneous rock, heat and pressure cause other rocks to turn into metamorphic rock, and weathered rock on the surface is eventually turned into sedimentary rock. Rocks move through this cycle at different rates, but it can take some rocks several billion years to complete the cycle. Using this information, what is the most likely reason why scientists use models to study the rock cycle? A. The rock cycle only affects objects that are too small to be observed directly.

B. The rock cycle is only an abstract idea and does not actually occur in nature.

C. The rock cycle no longer occurs on Earth.

D. The rock cycle takes too long to be able to observe it in entirety.

D. The rock cycle takes too long to be able to observe it in entirety.

Explanation: is answer

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force