<h2>1 nature</h2><h2>2 ecology </h2><h2>3 water cycle </h2><h2>4 carbon cycle</h2><h2>5 chemical cycle </h2><h2>6 ecosystem </h2><h2>7 food chain </h2><h2>8 producers</h2><h2>9 consumers</h2><h2>10 decomposer</h2>
Through leaching. B horizons or subsoil get materials from above through accumulated rain water that leached these materials and precipitated it into the B horizon.
<h2><em>In general, a scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. The explanation of a phenomenon is called a scientific theory. It is a misconception that theories turn into laws with enough research</em></h2>
That would be catalysts.
Catalysts accelerate (speed up) chemical reactions without damaging itself. They do this by decreasing the activation energy of a chemical reaction.
Enzymes are a type of catalysts.
It should be 1830 or a possibility of 1850