Which of the following choices below were proven by Priestley's experiments? Select all that apply. (1 point)

Responses

The process of photosynthesis releases oxygen into the environment
The process of photosynthesis releases oxygen into the environment

A flame requires oxygen to burn
A flame requires oxygen to burn

Carbon dioxide is essential to fire
Carbon dioxide is essential to fire

Photosynthesis absorbs oxygen from the environment

1 answer

Based on Joseph Priestley's experiments, the following choices can be selected:

  1. The process of photosynthesis releases oxygen into the environment - This was one of the key findings of Priestley's experiments, especially with his work involving plants and oxygen.

  2. A flame requires oxygen to burn - While this was established by Priestley in his experiments, it is not directly related to photosynthesis but rather to combustion.

The other two options are not proven by Priestley's experiments:

  • Carbon dioxide is essential to fire - This statement is not supported by Priestley's work.
  • Photosynthesis absorbs oxygen from the environment - This is incorrect; photosynthesis primarily involves the absorption of carbon dioxide and the release of oxygen.

So the correct selections based on Priestley's findings are:

  • The process of photosynthesis releases oxygen into the environment
  • A flame requires oxygen to burn
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