Science Quiz #262
Science and Nature Quiz for 22 January 2014
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1
Q1.
The fifteen elements with atomic numbers 57 to 71, which includes Lanthanum (La), Cerium (Ce), Praseodymium (Pr), Neodymium (Nd), Promethium (Pm), Europium (Eu), Erbium (Er), Thulium (Tm), Ytterbium (Yb) and Lutetium (Lu), are known as what?
Select from the options above.
2
Q2.
Which plant, a bushy herb of the mint family, has a heavy, strong scent, and has been used for centuries in perfumes?
Select from the options above.
3
Q3.
What is a specialized linear-beam vacuum tube used as amplifiers at microwave and radio frequencies to produce both low-power reference signals for superheterodyne radar receivers and to produce high-power carrier waves for communications and the driving force for modern particle accelerators?
Select from the options above.
4
Q4.
Prepatellar bursitis is more commonly known as what?
Select from the options above.
5
Q5.
Which of these is a pyrotechnic composition of a metal powder and a metal oxide, which produces a reaction that is not explosive, but creates short bursts of high temperatures on a small area for a short period?
Select from the options above.
6
Q6.
G. H. Armauer Hansen discovered the cause of what disease in 1873?
Select from the options above.
7
Q7.
Which of these is a name for pain in the back?
Select from the options above.