Biology, 10.07.2019 19:30 JammedBanjo58
What caused the composition of earth’s early oceans to transition from dissolved carbon dioxide to dissolved oxygen? a. ultraviolet rays from the sun converted dissolved carbon dioxide to oxygen. b. excessive rainfall over ocean waters caused carbon dioxide to separate into carbon and oxygen. c. cyanobacteria growing in ocean waters used up carbon dioxide and released oxygen. d. lightning caused the dissolved carbon dioxide in the ocean to decay into oxygen.
Answers: 2
Biology, 21.06.2019 16:30
Which of the following is not a main characteristic that scientists focus on when determining which kingdom an organism belongs to
Answers: 3
Biology, 22.06.2019 03:40
Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.
Answers: 2
Biology, 22.06.2019 11:00
Need the diagram below, which is not drawn to scale, shows the position of the earth, moon, and sun. what type of eclipse occurs when the earth, moon, and sun are lined up in the order shown? a. planetary eclipse b. solar eclipse c. martian eclipse d. lunar eclipse
Answers: 1
Biology, 22.06.2019 17:30
What is the purpose of presenting a false dilemma in a speech?
Answers: 1
What caused the composition of earth’s early oceans to transition from dissolved carbon dioxide to d...
Mathematics, 22.11.2019 23:31
Health, 22.11.2019 23:31
Biology, 22.11.2019 23:31
Chemistry, 22.11.2019 23:31
Mathematics, 22.11.2019 23:31
History, 22.11.2019 23:31
Biology, 22.11.2019 23:31