| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| kacirenaee | "the amount of carbon in the body is 18.5% and the amount of oxygen in the body is 68% " | Read more » | about 2 years ago | |||
| kacirenaee | "Biodiversity is important because it supports all life on earth including us humans. As humans we are consumers, we cannot make our own food so we ..." | Read more » | about 2 years ago |