When two or more elements bond together in definite proportions they form a

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

yay can i have brainliest

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint

airlines i think? or a cruise boat? does this work out for u? ?