De que manera demuestra el registro fósil que las especies han cambiado con el paso del tiempo

What is the result of multiplying (2.5 × 1010) × (2.0 × 10-7)? a. 5.0 × 103 b. 5.0 × 10-3 c. 5.0 × 1017 d. 5.0 × 10-17

The missing component to the table to the right or indicated with orange letters complete the table by filling in the corresponding numbers or symbols

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.