How much more acidic is a substance with a pH of 5 than a substance with a pH of 6?
A) 2 times B) 5 times C) 10 times D) 30 times
C
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In the year 1900, there were over 315,000 wild orangutans. What percentage of this number remains in the wild, and where are the majority of them located?
a. 90%, Indonesia and Malaysia b. 10%, Indonesia and Malaysia c. 50%, Malaysia d. 90%, Indonesia e. 10%, Indonesia
The United States emits about five times more carbon dioxide ____________________ than China emits
Fill in the blanks with correct word
When a current-carrying wire is bent into a loop, the magnetic field inside the loop
A. becomes concentrated. B. cancels. C. weakens. D. none of the above
Off-road vehicles should only use existing roads to minimize their environmental impact.
Answer the following statement true (T) or false (F)