What are some contributions plants make to the life cycle on earth? Would
humans be able to survive in a world without plants? Why or why not?
What will be an ideal response?
Contributions that plants make to the life cycle on earth include producing oxygen from
photosynthesis for use by animals and as an ingredient in oxidation, serving as a source
of food for animals and other life forms. Because humans depend on plants for both of
these contributions, it is hard to imagine human survival on earth without plants.
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Draw a flowchart to calculate cos X when  FIGURE 1.png)
correct to six decimal places. X = angle, in radians, and N is a positive integer.
 figure 2.png)
Think about a container someone throws away. How might it be redesigned so it could be recycled or reused?
What will be an ideal response?
____ letters are found in the grade stamp of veneered panels.
a.Two c.Four b.Three d.Five
Obtain the Thevenin and Norton equivalent circuits at terminals a-b of the circuit in Fig. 4.127.
 FIGURE 1.png)