All living things participate in the cycling of matter and energy throughout their ecosystems. Producers are a vital part of all of Earth's ecosystems. What factor must be present in a producer's environment for it to survive? * decomposers
herbivores
sunlight

common management practices in dairy and poultry farming are: (i) proper shelter facilities and their regular cleaning. (ii) some basic hygienic conditions such as clean water, nutritious food, etc. (iii) animals are kept in spacious, airy, and ventilated place.

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%

actually the answer is c