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Due to food scarcity in ancient times, people had to spend _____. a great deal more time than today to cultivate and find food a small amount of time to cultivate and find food the same amount of time
answered
Feb 5, 2020
Social Studies
high-school
6
votes
112k
views
How do you solve this question?
answered
Dec 7, 2019
Mathematics
high-school
4
votes
150k
views
How do human services differ from other consumer services?
answered
May 24, 2019
Advanced Placement (AP)
college
7
votes
11.8k
views
Your 3 year investment of 20,000 received 5.2% interest compound annually. What is your total return?
answered
Apr 25, 2019
Mathematics
high-school
4
votes
135k
views
A rectangular prism has a length of 3 1/2 inches, a width of 5 inches, and a height of 1 1/2 inches. What is the volume of the prism? Enter your answer in the box as a simplified mixed number or a decimal.
answered
Mar 24, 2019
Mathematics
middle-school
4
votes
103k
views
An acid has an acid dissociation constant of 2.8x10^-9. What is the base dissociation constant of its conjugate base? 2.8x 10^-23 3.6x10^-6 2.8x10^5 3.6 x10^22
answered
Oct 29, 2018
Chemistry
high-school
6
votes
33.7k
views
What two ideologies were at the hert of the disagreements between the United States and the Soviet Union during the Cold War?
answered
May 14, 2018
Social Studies
high-school
3
votes
22.8k
views
How are changes in the earth similar to changes in human beings
answered
Apr 25, 2018
Biology
middle-school
6
votes
32.2k
views
Which element shares the most characteristics with magnesium (Mg)?
answered
Feb 27, 2017
Chemistry
middle-school
2
votes
179k
views
China has finally halted the spread of the Gobi Desert by planting trees. True or false
answered
May 8, 2016
Geography
high-school
2
votes
92.1k
views
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