Define
Define collect
To gather an accumulation of (objects)
Cause
generate, create, produce
Report
I sent the report yesterday
Define cause
To make it happen
Solution
Solve, resolution
Throw away
We throw away a lot of garbage...
Define clean up
An act of removing harmful substances or chemicals from a place or the environment
Notice
Observe, see, detect
Notice
Sara noticed about the situation
Define be aware of
Having knowledge or perception of a situation or fact.
Recycle
Reuse, save
Be aware of
Humanity is aware of the consequences of global warming