That would be fermentation(anaerobic respiration.)
Fermentation is defined as the extraction of energy from carbohydrates in the absence of oxygen.
I would go with A : weathering and erosion
I was going to say C : volcanoes and earthquakes but when you read the pictures it says “ Mountains , low hills & rolling plains “
Answer:
D.
Explanation:
Kepler First law – The Law of Orbits According to Kepler’s first law,” All the planets revolve around the sun in elliptical orbits having the sun at one of the foci”.