Express the following quantity in scientific notation. The answer needs to have the correct number of significant figures. 21,300,000 mL

2.13 x 10 7 mL
2.13 x 10 6 mL
2.1 x 10 7 mL
0.213 x 10 7 mL

How is the composition of a meteorite relevant to finding out the composition of earth's core?

Naoki's bicycle has a mass of 10 kg. if naoki sits on her bicycle and starts pedaling with a force of 168 n, causing an acceleration of 2.8 m/s2, what is naoki's mass?

In which environment would primary succession occur? a forest with a few remaining trees after a recent wildfire an area of exposed rock after a glacier melts away beach that is exposed to the air at low tide an abandoned baseball field in a small town