Heated air inside a hot air balloon causes it to rise into the sky. when the air cools, the balloon returns to the ground. when is the hot air balloon behaving like an air mass in a high pressure area? in a low pressure area?

Which of the following would be a body response when stepping outside without a coat on a snowy day? a. senaceous glands. secrete more senum b. more liquid is transported by the body to the skin fir insulation c. blood vessels in the skin narrow and contract d. blood vessels in the skin expand

Which type of stimulus do mechanoreceptors detect? sound pain heat light

Earths energy sources include both renewable and nonrenewable resources. name at least three sources of energy that could be used in your house. then describe the ideal energy source for generating most of your homes electricity, and explain why you chose that source. can someone give me some ideas, i’m kinda confused.