Answer:
Areas where the air is warmed often have lower pressure because the warm air rises. These areas are called low pressure systems. Places where the air pressure is high, are called high pressure systems. A low pressure system has lower pressure at its center than the areas around it.
Explanation:
Mark brainiest'
Answer:
B
Explanation:
because their structures become more complex. Such as the human brain, over time we get more knowledge.
