Answer:
sample A
Explanation:
the first one because of the ppm value
Answer:
the plant population over time has decreased. this could make all other organisms above the plant population numbers decrease as well.
Explanation:
Answer:
3-methylhexane
Explanation:
you start counting from the longest chain to determine the correct name
<span>The radioactive uranium decays into its daughter product, lead. It would do this in magma as well, as nuclear decay depends on forces within the atom, not on the phase of the material in which the atom is a part.</span>
Answer: Explanation:
Calcium (Ca), chemical element, one of the alkaline-earth metals of Group 2 (IIa) of the periodic table. It is the most abundant metallic element in the human body and the fifth most abundant element in Earth's crust.
...
Calcium.
atomic number 20
oxidation state +2
electron configuration 1s22s22p63s23p64s2
Explanation:
