F^u^ck me hard on dat site :
ᵇʳᵃⁱⁿˡʸᶜᵒᵐ
.
ˢᵖᵃᶜᵉ

Much of the general structure and physical properties of the interior of the earth are inferred from: a)deep oil and gas bore holes b)geologic investigations c)analysis of seismic waves d) study of volcanoes

Non renewable resources like petroleum eventually

He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98