1. The Lupu bridge crosses the Huangpu river in which Asian City
2. Carol Bartz is the CEO of which company
3. What name is given to a shaft with a point at one end and fletchings and a nock at the other
4. What does a Nephelometer measure
5. Beginning with the letter "H", what name is given to the atmospheric phenomenon where dust, smoke and other fine particles obscure the clarity of the sky
6. What does HVAC stand for
7. When pouring free flowing powder or granules onto a flat surface, the angular surface of the pile naturally comes to rest at what angle
8. Titan is a moon of which planet
9. UV light is also known as what color light
10. Beginning with the letter "C", what name is given to a sequence of exothermic  chemical reactions between a fuel  and an oxidant  accompanied by the production of heat  and conversion of chemical species
    
    Bonus Question
    I was invented and first used in ancient China
    I was known and used by the Arabs from about 1240 AD
    There is documented evidence that I was used in mainland Europe around 1248 AD
    I am a mixture of sulphur, charcoal and potassium nitrate
    I am widely used as a propellant in firearms
    
    Hold down the left mouse button and drag below - to reveal the answer

1) Shanghai  2) Yahoo  3) Arrow  4) suspended particulates  in a liquid  or gas  colloid,  we will accept haze, smog or similar answers  5) Haze  6) Heating, Ventilation and Air Conditioning  7) The Angle of Repose  8) Saturn  9) Black Light  10) Combustion

Bonus Question
I am - Gunpowder