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badkarma2007 badkarma2007
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6 years ago
The symbol for potassium is
 a. Pm.
  b. Po.
  c. P.
  d. K.


[Ques. 2] Rain that freezes upon striking a cold surface gives rise to a(n) ______________ storm.
 Fill in the blank(s) with correct word


[Ques. 3] The symbol for carbon is
 a. Ca.
  b. Cr.
  c. Co.
  d. C.


[Ques. 4] Lightning between a cloud and the surrounding air is called ______________.
 Fill in the blank(s) with correct word


[Ques. 5] The symbol for Erbium is
 a. Er.
  b. Yb.
  c. Ho.
  d. Dy.
  e. Tm.


[Ques. 6] The boundary between two air masses is called a(n) ______________.
 Fill in the blank(s) with correct word


[Ques. 7] How many elements occur naturally on Earth?
 a. 102
  b. 88
  c. 112
  d. 82


[Ques. 8] An air mass forming over the Gulf of Mexico would be classified as ______________.
 Fill in the blank(s) with correct word


[Ques. 9] What was the nationality of the first persons who we know speculated about elements?
 a. Chinese
  b. Egyptian
  c. Greek
  d. Roman


[Ques. 10] An air mass derives its characteristics from its ______________.
 Fill in the blank(s) with correct word
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molly123456789molly123456789
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6 years ago
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badkarma2007 Author
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6 years ago
Thank you for being my superhero!
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