The Grand Canyon in the mid-western United States is a steep-sided cut in
Earth's surface that is 277 miles long and up to a mile deep. It was formed by
the force of
Glacier National Park in Montana contains U-shaped valleys where large
glaciers scraped away rock and sediment from the side of mountains. These
valleys were formed by the force of
Monahans Sandhills State Park in West Texas has sand dunes up to 70 feet
high. The dunes were formed from the force of
The Mississippi River Delta on the southern coast of Louisiana has spread 15 to
50 miles into the Gulf of Mexico over the last 5,000 years. It was formed from
the force of

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.

answer: carbon 14 can only be used to determine the age of the organisms that were once living, and igneous rocks are non living.

explanation:

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.