Answer: Physical map
Explanation:
A physical map is a map that is used to show and illustrate the physical features that can be found in a particular area.
The physical map helps the readers in the identification of deserts, rivers, mountains, landforms etc and also shows them the height, shapes etc.
Since we want to find where the Amazon river meets the rain forest, the physical map will be used.
I think techniques because usually things that arent a locomotion
The answer would be B the second option
