Explain how plants allow all organisms on earth to survive? (3-4 reasons required)

Which is an innovation of gymnosperms? gymnosperms are the first seed plants. gymnosperms are the first flowering plants. gymnosperms are the first vascular plants. gymnosperms are the first spore plants.

Which gas prevents the spread of fire and extinguishes it? is a type of compressed gas that prevents the spread of fire and extinguishes it.

If the selected review was submitted in word format, what are the posterior probabilities of it being short, medium, or long? (round your answers to three decimal places.)