200
Water is essential for ________.
Without water, it is impossible to _______ for more than a few days.
All my camping _________ is in my backpack.
Ecology is the study of how things relate to their ___________.
The environment in which the story takes place, including the time period, the location, and the physical characteristics of the ____________.
A _________ that affects the body.
We need to assess this _________ before we continue.
We need to create a ________ for our short sketch.
I knew my actions could ________ my friend's life.
I felt _____________ walking around the desert.
Training allows athlete to run at varying speeds, on different _______ and distances.