2. A student created a model of convection in the ocean using a beaker, water, and food coloring The model did NOT demonstrate convection as the student had intended. The model could be improved to best demonstrate and model convection in the oceans by adding a - A. light source
B. heat source
C. 2nd food color
D. wind source​

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:

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.

i think its 5049.

i hope this !