Which statement correctly explains what is happening in the image?

What best explains the inability for life to exist in earth early atmosphere

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind

When lactate builds up in a runners muscles it causes a burning sensation what causes this to occur