Answer:
The continents were once connected as one landmass.
Explanation:
This did happen it's called Pangea. There were similar fossil records in different continents.
<span> It is largely a supportive structure and is part of the secondary thickening of tall </span><span>plants</span>
You should wear safety glasses, point test tube away from people, heat tube at an angle, etc.
An aphotic zone is a zone where light can be received from the sun (or other sources of light).
For example in the ocean, it will be the zone that begins a 200m deep and goes to the bottom of the sea.
Hope it's helpful, have a nice day :)
