The circulatory system is the system that transports blood through out the system❤️
<span>The water cycle has no starting point. But, we'll begin in the oceans, since that is where most of Earth's water exists</span>
The answer is “the sustainability of the ecosystem” because if the ecosystem isn’t sustainable enough for many different organisms to live in it then the biological diversity of the ecosystem will decrease.
Mass of X₂O₇ = 54,9g
2x + 33,6g = 54,9g
2x = 54,9g - 33,6g
2x = 21,3g | :2
x = 10,65g/mol
