Question

1. what are the 2 processes only primary producers use to produce energy?

the 2 processes only
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Explanation:

Primary producers (like plants, some bacteria) are organisms that can produce their own energy - rich organic matter. The two key processes unique to them for energy production are photosynthesis (using sunlight, carbon dioxide, and water to make glucose and oxygen) and chemosynthesis (using chemical energy from inorganic compounds like hydrogen sulfide in places without sunlight, e.g., deep - sea hydrothermal vents). These processes allow them to convert non - organic or light energy into chemical energy in the form of organic molecules, which is not done by consumers (organisms that rely on eating other organisms for energy).

Answer:

The two processes only primary producers use to produce energy are photosynthesis and chemosynthesis.