brjnhiljyehhuuij brjnhiljyehhuuij
  • 21-09-2022
  • Physics
contestada

What two gases together make up about 99% of Earth's atmosphere? a. Carbon dioxide and nitrogen

A: Nitrogen and oxygen
B: Nitrogen and helium
C: Argon and oxygen
D: Trace gases and nitrogen

Respuesta :

milagrosee120
milagrosee120 milagrosee120
  • 21-09-2022
A: Nitrogen and Oxygen
Answer Link

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