Answer:Hydrogen
Explanation:
The pH scale is a measurement system that indicates the concentration of HYDROGEN IONS in a solution. The pH scale ranges from zero to 14. A pH that is less than 7 is considered to be acidic while a pH that is more than 7 is considered to be basic.
Chemical digestion<span> in the </span>small intestine<span> relies on the activities of three </span>accessory digestive organs<span>: the </span>liver<span>, </span>pancreas<span>, and </span><span>gallbladder.</span>
Answer:
A multicellular organism develops from a single cell (the zygote) into a collection of many different cell types, organized into tissues and organs.During development, cells use both intrinsic, or inherited, information and extrinsic signals from neighbors to "decide on" their behavior and identity.
Intermediate and deep focus earthquakes. The reason is being the tectonics plates are always shifting and so, old it’s always able to cause a problem. The tectonic plates crash at some point. Usually it’s a small one at first, then a big one, and after that a aftershock which is bigger than the second one.
This is the best I can give you right now with a deadline.
land development is the answer to the question because human land development is killing the birds