Answer:
The strength of an acid depends on the concentration of the hydronium ions present in a solution.
It is c. Earth’s oceans
bc water is necessary to sustaining life on Earth, and helps tie together the Earth's ... The ocean plays a key role in this vital cycle of water.
Most likely true..it's a food chain.
everone is hungry and depending on some type of food..and if they can't get it and eat it, eventually they die
A national day is a day on which celebrations mark the nationhood of a nation or state. It may be the date of independence, of becoming a republic, or a significant date for a patron saint or a ruler (such as a birthday, accession, or removal). The national day is often a public holiday.
0.4411 I’m not sure but this is what I found