I’m pretty sure it’s B. Relative saying
So the the main forces that keep the water on the surface of the planet are to do with plate tectonics. If the plates were to stop moving, the water probably would eventually be absorbed into the interior, although this process would take a very long time indeed.
Erosion shapes. Lowest level directs.
- Oxygen cycle is the cycle which maintains the level of oxygen in the atmosphere.
- Oxygen from the atmosphere is used up during combustion, respiration and in the formation of oxides of nitrogen.
- This oxygen is returned to the atmosphere by lithosphere.
- This forms the oxygen cycle in nature.
Hope you could get an idea from here.
Doubt clarification - use comment section.
Glycerides of higher fatty acids are oils are fats. Oils are liquids while fats are solids at room temperature or at 25 degree Celcius. Oils have some unsaturated acids forming triglycerides while fats are glycerides of mainly saturated higher fatty acids. Hope this helps.