Answer:
its b sunlight
Explanation: because why would a plant grow according to pressure gravity or touch.
From top to bottom, I believe the answers are:
Biologist
Chemist
Geologist
Hydrologist
The RNA world hypothesis states that the earlier life-forms had relied only on RNA (Ribonucleic Acid) for the purpose of catalyzing the chemical reactions, and storing the genetic information. This hypothesis was proposed by Leslie Orgel, Carl Woese, and Francis Crick.
This hypothesis states that long before the living forms evolved to use DNA as the genetic storage material, the RNA molecules served the purpose of both storing the genetic information and carrying out catalysis, but because of its instability, DNA evolved.
Hence, the answer is RNA world hypothesis.
A. Keeps carbon dioxide from escaping atmosphere
and slows diffusion
B. Prevents bicarbonate formation and slows
photosynthesis
C. Provides fossil fuels and recycles carbon dioxide
D. Prevents carbon dioxide from entering
atmosphere and dissolves fossil fuels