Convection : Warm air rises and cold air sinks, you have a cycle there :D
You can experience it on the beach shore. Since water has a high heat capacity ( it takes longer to heat up ) and the sand get hot quickly, the air on the shore gets warm and rises. When the air reaches to certain elevation (or meet the temperature of the beach), it gets cooler and sinks, cold air from the beach blown to the shore.
Answer:
c
Explanation:
Im pretty sure, so sorry if I'm wrong though.

FIVE SUB GROUPS OF VEGETABLES:-
✔️dark-green vegetables
✔️ starchy vegetable
✔️ red and orange vegetables
✔️ beans and peas
✔️ other vegetables.
HOPE IT HELPS YOU.
This would be D) The atmosphere :P
Answer: C) by eating meat, he could migrate wherever animals are found, and live in cold areas where plant-eaters (like Australopithecus) could not have found food during Ice Ages
Explanation:
Home erectus are the oldest humans species in the africa and they expand there range in the several continents like south east asia for the search of diet that includes meat and increasing the food supply in the environment seasonally and also live in cold area where plant eaters do not find enough food during ice ages. As, homo erectus are the posses the cultural and physical attributes.