The word arable means to be able to plowed and use for the growth of groping crops. And is a temporal use of the land that can be characterized by the pastures and the meadows and thus is generally under the system of the crop rotation.
India has the largest arable land for the farming activities as 1,597 km square, with the U.S and the second and Russia as the third owing to the productivity of the lands.
<u>The use of the slash and burn and other cropping techniques makes the lands more arable to the human use and thus can feed the growing population of the country.</u>
The best answer to this question where the voyage would go through and the type of ecosystem in the Canal area of Panama is that its a Rainforest. I hope you are satisfied with my answer and feel free to ask for more if you have questions and clarification
