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There is a great ______ for tickets to the Olympics.
Subtract is to take away one number from another; other words include minus or find the __________.
Our ___________ bill is much higher this year.
Ecology includes the study of how animals relate to their ___________.
In the foreseeable ______.
______ warming constitutes towards climate change.
A __________ will speak at the meeting.
You must follow ________.
Save waste and _______ all your glass.
_________ resources are things that can be used over and over again, for example; sun, wind.
The ______ of this river is in those hills.
Global _______ constitutes towards climate change.
___________ energy can be carried on without wasting things or harming the natural world.