Answer:
protons is 7 neutrons should be 9
Explanation:
protons number is its atomic number
the number of protons and the number of neutrons determine an element's mass number.
Answer:
discovery to our planets past
Explanation:
I don't really know if that's what you're looking for... hope this helps!!
Answer:the decline of lichens is an important indicator of an imbalance in the ecosystem. this research can help system ecologists predict how pollution will affect the entire ecosystem
Explanation:
Polysaccharides have 1 sugar
disaccharides have 2 sugars
monosaccharides have a chain of sugars
The answer is constellation.
