hunNikkidNanaK hunNikkidNanaK

12-11-2015
Chemistry

contestada

Ancient cyanobacteria released ______, which assisted in creating the atmosphere as we know it today.
A. lead
B. hydrogen
C. oxygen
D. ore

Respuesta :

12-11-2015

Ancient cyanobacteria released hydrogen which assisted in creating the atomsphere as we know it today.

Answer Link

Otras preguntas

A lead views a specific page on your website, say, your case study page. You then send targeted follow-up content like one of your more popular case studies. Th

Because you understand the law of supply, you can deduce that the correct graphical representation of the supply for CDs must be__________.

De qué colores son la rosa y la azucena? . El poeta está describiendo la cara de una mujer. ¿A qué partes de la cara se podría asociar estos colores? De qué co

When a tuning fork is struck, it produces sound waves of wavelength 114 cm which travel at 343 m/s through air. What is the frequency of the tuning fork?Choose

A prominent example of the process of returning more of the responsibilities of governing from the national level to the state level is

What does the phrase “we the people” mean in the constitution

The number 1 is prime? True or false

What do you need to know?

A company can protect its competitive position under __________, which gives inventors the right to exclude others from making, using, or selling products that

How does the law of conservation of matter apply to chemical equations? O A) The sum of the coefficients on each side of the equation must be the same. ОВ) The