(C) they used trans-Saharan trade route to acquire expensive ivory.
Answer: a. decreases the present and future risk to human properties
Explanation:
Properties along the coasts can be in danger when high tides come in. This can however be mitigated by walls protecting those properties as it would take a significantly high tide (flood proportion) to scale those walls and come in and damage the property.
These walls therefore not only decrease the present risk to human properties but if maintained, decrease the future risks as well.
Atom -> molecule - organelle - cell - tissue - organ - organ system - organism - population - community - ecosystem - biosphere
There’s more to this but that’s whether you require more or less of the list
The answers for 12 questions in attached pdf.
I cant tell you the answer since theres no picture but im guessing the steepest one out of all of them
