AaliyahJordan AaliyahJordan
  • 26-05-2017
  • Biology
contestada

Scientists believe that the Earth's early atmosphere lacked __________ gas because photosynthetic organisms did not yet exist.

Respuesta :

Bsini
Bsini Bsini
  • 26-05-2017
carbon dioxide Let me know if you want me to explain.
Answer Link
Аноним Аноним
  • 26-05-2017
I think it is carbon dioxide.  I'm not sure though.
Answer Link

Otras preguntas

Which is the definition of root? A:the base of a word B:the end of a word C:the word origin D:the beginning of a word
Choose the correct price of the bicycle mentioned in the sentence? La bicicleta de montaña nueva cuesta $1,590.00. mil quinientos veinte dólares mil quinientos
Which classification best describes ∠2? right straight acute obtuse
a man covers a distance of 15kn, in 3 hours partly by walking and partly by running. if he walks at 3km/h and runs at 9km/h, find the distance he covers by runn
PLEASE. I am frustrated.Stu hiked a trail at an average rate of 3 miles per hour. He ran back on the same trail at an average rate of 5 miles per hour. He trave
One major difference between the inner and outer planets is that the outer planets are much denser. outer planets are much larger. inner planets have thicker at
what is the possibility that the spinner will land on a number greater than 4 or on a shaded section
Which rick factor is most likely to be encountered in a work place
Find the measure of angle F if measure of angle D equals 88
calculate the number of moles of a gas if it occupies a volume of 4dm at 10atm and _200°c.