Why are plants so essential to us?
What will be an ideal response?
Without plants, the atmosphere of our planet would not have the oxygen required to
support animal life. Plants provide air to breathe, food, fiber, and erosion control
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Technician Brett used 
?hours to install 16 PV panels on a house roof. Find the average time Brett needed to install each panel.
Fill in the blank(s) with the appropriate word(s).
Why are negligence lawsuits referred to as tort cases?
What will be an ideal response?
Which type of standard TTL circuit allows several devices to be connected to its output simultaneously?
A) a 7476 flip-flop B) a Schmitt trigger circuit C) a 7404 inverter D) No standard TTL circuit can do this.
An invention agreement is used to:
A. protect the inventor at the company B. protect the company from a worker marketing an idea C. guarantee a raise if a good idea is developed D. none of the above