Removal of existing ____ plants and avoiding installation of new ones helps create a more sustainable yard.
A. native
B. non-native
C. invasive
D. non-invasive
Answer: C
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On an elevated workstation, stack masonry units far enough apart to _____.
a. allow room to use a wheelbarrow b. provide tool and equipment storage space c. leave room for mortar pans d. permit a safe walking path
Is hydrogen considered to be a hazardous chemical? Why or why not?
What will be an ideal response?
The production of polyamide from raw materials of plant origin, such as castor oil, requires 20% less fossil fuel than conventional production methods. Darvon Chemicals borrowed $6 million to implement the process. If the interest rate on the loan is 10% per year (on unrecovered balance) for 10 years, what is the amount of interest for year 2? Also, write the spreadsheet function that displays this same amount.
What will be an ideal response?
The indicated horsepower is 75, but only 65 horsepower is delivered at the driving wheels. What is the mechanical efficiency? Express the answer to the nearest whole percent.
A. 68% B. 70% C. 75% D. 87%