The most important element in south africa's economic expansion was

All the planets

Conditions are more like living on  land  for creatures in the upper part of the intertidal, which is only covered with  water  at extreme high tide, so life is easier on land. conditions are more like living in the ocean for creatures in the lower part of the intertidal which is only exposed to air at extreme low tide. so basically it both worlds of land and ocean.

If your saying what’s the biggest ocean in the world? the answer is pacific ocean

Global warming is happening at an alarming that there is no way of preventing it from happening because humans contribute to it