Answer:

Explanation:
2C₄H₁₀ + 13O₂ ⟶ 8CO₂ + 10H₂O
n/mol: 4.3
13 mol of O₂ react with 2 mol of 2C₄H₁₀

South Pole and north Pole . it's about megnetic field different spheres of earth interact
The correct answer is c because enzymes increase the rate of all biochemical processes