Fossil age can determine organism changes related to the time scale. select the best answer from the choices provided t f

Nickel crystallizes in the face-centered cubic (fcc) lattice. the density of the metal is 8902 kg/m3. calculate the radius of a nickel atom.

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?