An element has atomic number 10 and an atomic mass of 20. how many neutrons are in the atom of this element?

a.10
b. 20
c.30
d. 0
e. 200

In pea plants, the allele for tallness (t) is dominant to the allele for shortness (t). in the cross between a tall pea plant and a short pea plant shown below, what is the probability that the resulting offspring will be tall? whats the percent

If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?

Which type of fossil does this image depict?