Answer: There are 20 protons neutrons in the atom
The answer is A because I did this before
Answer:
The outer core of the earth is liquid.
Explanation:
Seismic waves travel through the Earth at different speeds and are reflected and refracted diffracted differently as they encounter layers of different densities.
By analyzing these waves, they have concluded that there is an inner core of solid iron surrounded by a liquid outer core consisting of nickel and iron.
A is wrong. The Earth consists of several layers
C is wrong. Seafloor spreading is caused by the movement of tectonic plates away from each other.
D is wrong. The mantle is mostly solid rock.
Answer:
hi
Explanation:
1 east
2 the flower bud for cotton and for jute the leaves
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I'm guessing water vapour. i can't think of any other gas limited to only hydrogen and oxygen
hope it helps :)