Respuesta :
The big premise in the argument is the link between trees and oxygen. It's the assumption that, without trees, humans would have insufficient oxygen to survive. Trees DO produce a lot of oxygen, but the majority of it comes from photosynthetic organisms in the ocean. Killing off all of the trees would certainly be disastrous, and ecosystems would collapse, starving us to death in short order
Answer:
First, identify the explicit indicators to put the argument into the logical sequence of a syllogism. Make sure to ignore all sentences that are not propositions.
P1 All root systems need nitrogen.
C Therefore, all trees need nitrogen.
Then, identify the gap in the logical sequence by asking, “What is the assumption linking P1 to C?” It is this: “All trees have root systems.” Finally, put it together:
P1 All trees have root systems.
P2 All root systems need nitrogen.
C Therefore, all trees need nitrogen.
The argument is valid because the implicit premise fits within the structure of the syllogism. Is the argument sound? Well, that depends on whether or not the scientific facts hold up. Since all trees do have root systems and all root systems do need nitrogen, the premises are true and the argument is sound.
Explanation:
e2020