8.5 What is the purpose of the of the water in the reservoir? (1)

TOTAL QUESTION 10: 

  Insecticides were sprayed on the marsh grass and cattail to kill insects that eat the crops. Unfortunately, the toxins in the insecticides never leave the food chain and can have serious consequences for those organisms at the top of the food chain.   9.5 What is this an example of? (1)

TOTAL QUESTION 9: 

What is the purpose of protest songs?

TOTAL QUESTION 8: 

All U.S. private companies will have standing audit committees.

What is the standard big band instrumentation that resulted survives to this day?

For public companies on U.S. markets, an auditor is required to review the company’s internal controls over financial reporting and express an opinion on the effectiveness of those controls.

5.4 Explain the significance of the pores present at part number 4. (2)