Which of these activities requires the use of a material resource?
A heating a home
B. manufacturing steel
C. climbing a tall mountain
D. generating an electric current
If u scam u will get reported

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons