What is a mineral resource?
a. any rock or mineral that is non-organic.
b. minerals that contain useful metals.
c. any rock or mineral that is useful to humans.
d. rock body containing economically valuable minerals. sand and clay minerals used in construction.

Create 3 equivalent fractions using the area model for 2/5create equivalent fractions using number lines for 1/2create equivalent fractions using multiplying for .3/4brainliest

During metamorphic processes, increased pressure and temperature can affect the of minerals in rock. rocks subjected to very high pressure are typically than others because mineral grains are squeezed together, and the atoms are more closely packed. during metamorphic processes, water facilitates the transfer of ions between and within minerals, which can the rate at which metamorphic reactions take place. the growth of new minerals within a rock during metamorphism has been estimated to be about per million years. metamorphism is commonly associated with convergent plate boundaries, where two plates move toward each other. during contact metamorphism, a large intrusion will contain thermal energy and will cool much more slowly than a small one. metamorphosed sandstone is known as the metamorphic rock made from metamorphosed shale, was once used to make blackboards for classrooms

What would have happened to portugal’s trade if they had not found a way to sail around the tip of africa