Atmósfera

The Earth's atmosphere consists of 78% nitrogen, 21% oxygen, and small amounts of other gases. It becomes thinner with increasing altitude. Although there's no strict boundary, the atmosphere's upper limit is generally accepted to be at 100 km.

What is the primary component of Earth's atmosphere?

• Carbon Dioxide

• Nitrogen

• Oxygen

• Argon

As altitude increases, what happens to the thickness of the atmosphere?

• It increases

• It remains the same

• It decreases

• It fluctuates

Which gas is present in the smallest amount in Earth's atmosphere?

• Nitrogen

• Oxygen

• Carbon Dioxide

• Argon

What is the generally accepted upper limit of Earth's atmosphere?

• 200 km

• 150 km

• 100 km

• 50 km

Is there a strict boundary between Earth's atmosphere and space?

• Yes, at 150 km

• No, there is no strict boundary

• Yes, at 100 km

• Yes, at 50 km