On primitive Earth,oxygen combined with $........$ to produce water and carbon dioxide.

  • A
    Organic components
  • B
    Ammonia and methane
  • C
    Hydrogen sulfide
  • D
    Sulfates and nitrates

Explore More

Similar Questions

The first life on Earth was ...

The first organisms that appeared on Earth were

An evolutionary explanation of the origin of plants and animals was given by

Describe Miller's experiment with a diagram.

Which of the following experiments suggests that simple living organisms did not arise spontaneously from non-living matter?

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo