Question: Are all the elements plants need for photosynthesis present in atmosphere of Mars?, Answer:Yes, Description of Atmosphere of Mars: atmosphere, Fact1: Plants need three elements for photosynthesis: Hydrogen, Oxygen, and Carbon., Fact2: The atmosphere of Mars is composed of carbon dioxide, nitrogen, argon, and trace levels of water vapor, oxygen, carbon monoxide, hydrogen and other noble gases.
Step1: What are the elements needed by plants need for photosynthesis?, Step2: Which elements are found in the atmosphere?, Step3: Are #1 included in #2?, Wikipedia page for step 1: Photosynthesis, Wikipedia page for step 2: Atmosphere, Wikipedia page for step 3: , not_definitive_answer: False, incorrect_answer: False