Answer:
Multi-step process
Because it can be done twice or more
D) El Nino because EL Nina is the cooling of the water.Photosynthesis is to do with plants and Tsunami is a storm
The answer is B An observation about the number or amount of something
Answer:
the 4 different types of bases - adenine, thymine, cytosine, and guanine
adenine always pairs with thymine, and cytosine always pairs with guanine.
(dont know how they pair)
Explanation:
Answer:
A compound contains atoms of different elements chemically combined together in a fixed ratio. A mixture is a combination of two or more substances where there is no chemical combination or reaction. ... Mixtures contain different elements and compounds but the ratio is not fixed nor are they combined via chemical bonds.
Explanation:
