A desert is a __________ environment
harsh
That cat is __________ fat.
extremely
i can use a map to __________
navigate
There are 7 _______
continents
Those are ____________
sled dogs
climbing a mountain is ________
challenging
He can hear an ____
echo
The thunder was so loud that the water _______
vibrated
There are many planets in our ____________
solar system
I would like to study __________
astronomy
The rocket ______
launches
more than 70% of the earth's ______ is covered with water
surface
