3 is a
7 is b hope I helped
H2O is a substance that that is classified as a compound. It is the chemical formula of water. A compound is two or more elements that have been chemically combined. In this question, water has two elements which are hydrogen (H) and oxygen (O). Two hydrogen atoms combine with one oxygen atom to form a compound. The answer will thus be B.
The answer to this question is biodiversity. Biodiversity is
the variants in organisms, animals, and plants simplified as variation of life
in all levels in the ecosystem. Mr. Edward Osborne Wilson is known as the
father of biodiversity. Biodiversity is important because it makes the ecology
stable and give economic benefits to people.
The large-scale ocean-atmosphere climate interaction linked to a periodic warming in sea surface temperatures across the central and east-central Equatorial Pacific is what is used to describe an El Niño, so I’m guessing this is what is associated with it.
Community I believe is the term