HELP ME PLEASE One group of students made a local watershed model. The watershed model was most likely used by the students to

demonstrate surface water collection at different locations
forecast floods and droughts at the location
investigate the amount of rain water used at the location
forecast the amount of precipitation falling at the location

Which describes increasing the efficiency of energy resource

Sasha has just gotten a new job in a nearby city. after comparison shopping, she found that renting a nice two-bedroom apartment would cost around $800 per month. her utilities would cost about $150 per month. sasha has enough money saved for a down payment, and she found that she can buy a three-bedroom house or condo with a mortgage payment of $1,000 per month, including taxes and homeowner's insurance. her utilities would cost about $200 per month. what is the advantage of buying the house over renting the apartment?

What happens when the vapor pressure of a liquid is equal to the external pressure?