Phân tích tác động của Điều kiện sẵn sàng đón khách đến phát triển du lịch

Can someone me? i need to have this done as soon as possible! i'm putting 20 points on this!

When geographers describe how two places are related to each other spatially, they are describing a. where the places are located in relation to one another b. what kinds of natural environments are around each place c. how each place is changing over time d. what kinds of cultures are in each place

The process by which liquid water changes into water vapour is called what ?