In a solar system, there is a sun that is in the middle and has planets orbiting around it. The same way, the nucleus is in the middle with electrons orbiting the nucleus. <span />
Plants use Photosynthesis for food and nutrients and produce oxygen in the progress
<span>Well this isn't actually a question but to market to a company like this you first have to impress a small number of people in a single chain of command. Your products don't have to be marketed to a company as a whole or to a single rung of the food chain but to each successive member in a hierarchy in the company. Firstly to the employee, then to their management then to the ones who actually making the decision to buy.</span>
Answer:
the awnser is the loss of water resources in estuaries
