Josh walks 1,000 meters along a straight southerly path to the grocery store. upon reaching the store, he realizes that
he forgot his money and returns home (along the same path) to get it. he returns to the store along the same path;
however, he is able to cut his time in half because he uses his skateboard. he buys a candy bar and returns home. what
distance did josh travel?

Are there options for this?

The answer is trial 3.

Ithink it’s: light bounce if off a mirror

Answer;

hot magma rises and pushes up toward the lithosphere, and as it cools it cycles back down toward the core to be heated again.

explanation; convection currents are the circular pathways taken by a fluid that enhances heat transfer by the process known as convection which occurs in fluids.convection currents transfer heat from one place to another by mass motion of a fluid. earth mantle is in a semi-liquid state and behaves like any other fluid, rising up from the bottom of the mantle after becoming hotter and less dense from heat of the earth's core, as the rock loses heat into the earth's crust it becomes cooler and more dense, then sinking back down to the core, then repeating the cycle.