Modern hypothesis is given by:
Abbe Lemaitre
Haeckel
Oparin
Richter
Modern Hypothesis -
The modern hypothesis of the origin of life was formulated by Haeckel.
- wherein
It states that:
1. Earth's surface and atmosphere during the first billion years of its existence were radically different from today.
2. Earth's initial atmosphere was a reducing one.
3. First life arose from a collection of chemicals through a progressive series of chemicals reactions.
4.Solar radiation, heat radiated by earth and lightning provided energy for an evolution of molecules.
Correct option is 2