How much heat is necessary to raid 2.5kg of steam 3 degree Celsius

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

im not exactly sure but i think its b!

the answer is 1 i believe