Recent research shows that noise pollution causes birds a lot of _______________, and can lead to poor health in their young.

PRONUNCIATION SKILL   Choose the correct syllable stress for the next five questions.

As much as I enjoy playing tennis, I think I have to _______________ the school club because I’m too busy these days.

Complete the sentences using the correct words.  You MUST spell the word correctly to get full marks.    plenty ambitious focus motivation establish Unlike my sister, who’s a night owl, I find myself more able to [_____.5__________] in the mornings.    When going on a hike, wear proper shoes and bring [_______1________] of water with you.   We should have a meeting with the group to [_____2__________] a plan for our project.   When I was a teenager, I had a(n) [_______3_______] idea to start my own business.   Lance’s main [____4___________] for working is to earn enough money to support his family.

What is the proper term for baby teeth?

What is the hardest substance in the human body?

The equation (1 + x2 ) y” + xy’ + y = 0 has an ordinary point at x = 0.

Using complete sentences, describe the pulmonary circuit of blood flow in humans. Your answer should start with blood leaving the right ventricle of the heart, going to the lungs, and then returning to the heart. What specific heart chambers and blood vessels are involved (and in what order?) Also describe the relative oxygenation (oxygenated vs. deoxygenated) of the blood in the structures and explain where gas exchange occurs. 

  The December 7 attack on Pearl Harbor  

  What was the goal of the policy of appeasement?