One redo our could be a body of water like a dam as such, and another is something like a retention pond, taking in water
Topographic maps and satellite images
Explanation:
A topographic map represents earth's surface features like land forms and structures, rivers and lakes, mountains and hills, elevations and other natural features along with man-made artificial features like cities, buildings, monuments, roads, bridges etc. These are formed by contour lines.
Topographic maps are printed with revision dates to observe the changes happening on the Earth's surface. Various land forms keeps changing due to natural and man-made causes and these needs to be updated accordingly to provide accurate details.
A satellite image provides details of the earth aerially from space. These provides details of a land form or any earth structure currently.
By comparing with older satellite images or topographic maps with the current one, the changes which occurred over time can be observed.
Air, water, some kind of food or sustenance <span />
Science can be used to address societal issues and to inform policies. Hope I Helped :)
The best answer would probably be D, because they'd need the enough land or they wouldn't even be able to think about building it.