The first one because just think about how light oxygen or air is
D. population and nutrients
cars put pollution in the air and it harms our lungs same with smoking
mark brainliest;)
<span>there is no easy definition of an algae. Algae are generally microscopic organisms, are usually thought of as simple aquatic plants which do not have roots, stems or leaves and have primitive methods of reproduction. </span>
In the event that there is either or both
an illness and an injury, the issues listed below may have an effect on your finances:
<span>1. Expenses related to direct health care
2. The costs of recuperative care
3. The costs of rehabilitation</span>