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Why was the evolution of photosynthesizing bacteria important to most modern organisms? these bacteria released free oxygen into earth's atmosphere for the first time; as their numbers grew, the amount
answered
Feb 2, 2019
Biology
high-school
3
votes
130k
views
Plz help me with 2 question they are is 1) explain symptoms in the early and late stages of the black death. 2) explain how people protected themselves from the black death in the middle age? did it work?
answered
Sep 29, 2018
History
middle-school
1
vote
122k
views
Which best describes the structure of the poem "Safari Day in Kenya”?fixed form with a strict rhyme schemefixed form with a loose meterfree verse with rhyming quatrainsfree verse with varied line lengths
answered
Aug 17, 2018
English
high-school
3
votes
29.8k
views
HURRY HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
answered
Jun 2, 2018
Business
high-school
6
votes
205k
views
A ramp leading to the freeway overpass is 210 feet long and rises 31 feet. what is the measure of the angle formed between the ramp and the freeway?
answered
Mar 31, 2018
Physics
high-school
3
votes
215k
views
Which body of water is the arrow on the map above pointing to? A. the Murray River B. the Darling River C. the Waikato River D. Sunderland Falls
answered
Nov 25, 2017
Geography
high-school
6
votes
36.8k
views
you give a shopping cart a job down the aisle the cart is full of groceries and has a mass of 18 kilograms the cart accelerates at a rate of 3 m/s how much force did you exert on the cart
answered
Jun 28, 2017
Physics
high-school
3
votes
108k
views
A rectangle has an area of 30 square meters and a perimeter of 3 meters what are the dimension of the rectangle
answered
Oct 28, 2015
Mathematics
middle-school
7
votes
7.2k
views
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