Answer:
Electrolysis is more expensive. Electrolysis is when water molecules break down into oxygen and hydrogen gas. Breakdown of methane contains carbon and releases CO2.
Proteins.
These four carbon-based molecules are necessary for building an organism.
Relationship:
Carbohydrates and Lipids-Energy storage
Nucleic Acids - Proteins -- Blueprint - Building blocks
2. sodium ion that has lost an electron
Answer:
the emperor penguin can hold their breath for 20 minutes
Explanation: