Please read each question carefully. Make sure you report your answer with the correct number of significant figures and with the correct unit.

How to type your response:
The way you enter your answers is important. If you need to enter a number like 2.31 x 10²¹    type 2.31x10^21 (no spaces). If a your answer has a unit of grams of carbon,just type grams or g. So, if you put it together 2.31x10^21 grams