Caution! The site can't guarantee, that text has age permission. The site is not recommended, if you are less than 18 years old.
The site shows example sentences for English words. How the word or phrase could be used in a sentence?
" ... Stone and his team linked this newfound water outflux mechanism to seasonal variations in Mars’ atmosphere. Mars is at its warmest when it is closest to the Sun during summer in its southern hemisphere, he says. That’s when these regional and global dust storms occur. During such periods, the hygropause (a cold layer in the atmosphere at which water condenses from a vapor to a liquid, producing clouds) is warmed and weakened. This, in turn, allows water into the upper atmosphere. ... "