Answer:
Lead is one of the important elements found on earth. They are metallic gray in color and one of the heavy metal. It has a density of about 11.34 g/cm³. It has a high density because of its closed type of packing and face-centered cubic structure. Lead rarely occurs in its pure form on earth. It is mostly found to be present in association with its principle ore known as galena.
Thus, <u>lead is a very denser element as it has a very high density</u>.
<u>In a situation where there is a huge amount of lead in the earth's interior, the lead will be most likely to be found in the core of the earth</u>. It is because, in the present scenario, the core of the earth is comprised of denser elements namely iron (Fe) and nickel (Ni) that have an extremely high density.
Answer:
Scientists cannot directly observe the layers of the Earth.
Answer:
D. Legumes
Explanation:
These plants will fix nitrogen into the soil, and are a natural fertiliser.
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B.
A- crest, B- wavelength, C- wave height, D- trough
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Hope this helps!
