There are about 26 major desert regions on earth and a number of smaller deserts. For a list of the major deserts click on this link.
Deserts cover much more of the earth's surface than do rainforests.
Yes, due to the very low humidity, deserts experience more evaporation than precipitation.
Some deserts have more sand (ergs) while others (regs) have more rock.
Yes.
There are at least 24 major deserts in the world and a number of smaller deserts.
a desert is a place where it rains less than 10 inches a year so some deserts are not sandy
23 more than 644 is simply, 644+23. and that would equal 667.
Grasslands typically receive more rainfall than deserts, but still less than forests or other more humid regions. The lower amount of precipitation in grasslands supports a mix of grasses and shrubs suited to drier conditions, compared to the scarce vegetation found in deserts.
Much more fuel to burn in the grasslands.
reflect
Tropical rainforests contain more/higher biodiversity than deserts since their conditions are a lot more ideal for the growth of organisms.
The number that is 10 more than 23 is 33. To find this, you simply add 10 to 23, resulting in 23 + 10 = 33.