In a garden, an ant walked past an earthworm that was moving at 7.2 millimeters per
second. When it passed the worm, the ant had walked 408 millimeters directly toward a plant
at a constant velocity. It took the ant 10.0 seconds to walk that distance. What was the ant's
velocity?

c is the answer because when something is left after something evaporates that shows the chemical change.

with this one i know the answer in craters one reason i looked it up and i learned about it there is my evidence

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

hope i !