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Which of following is harmful to the ozone layer by decomposing O3 to O2? carbon dioxide sulfur dioxide greenhouse gases chlorofluorocarbons
answered
Aug 10, 2019
Chemistry
middle-school
4
votes
94.6k
views
Write an expression with parentheses (don't simplify!) to represent the following quantity: five times the sum of 173 and 32
answered
May 18, 2019
Mathematics
high-school
3
votes
121k
views
Considering that silicon is a metalloid, which of the following statements is true a. silicon's ability to conduct electric current does not vary with temperatures b. silicon does not conduct electric
answered
May 2, 2019
Chemistry
high-school
3
votes
147k
views
What integer is represented by 3 black cubes
answered
Mar 18, 2019
Mathematics
college
4
votes
233k
views
Which of the following applications does not belong to "ser?" -time -location -occupation -nationality
answered
Aug 31, 2018
Spanish
high-school
3
votes
197k
views
Spores produced by the small male cone of a pine tree are produced by meiosis or mitosis
answered
Jul 26, 2018
Biology
college
3
votes
41.8k
views
Factor completely. 4u² – 20u + 25 2(2u – 5)² (4u + 5)² (2u – 5)² (2u + 2)²
answered
Feb 11, 2018
Mathematics
high-school
2
votes
113k
views
Allen runs 8 miles in three hours at a steady pace how long does it take him to run 3 miles
answered
Oct 13, 2017
Mathematics
middle-school
5
votes
38.9k
views
What is the greatest whole number that rounds to 23,700 and why?
answered
Sep 15, 2017
Mathematics
middle-school
5
votes
204k
views
What times what equals 31
answered
May 24, 2017
Mathematics
high-school
4
votes
21.9k
views
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