Efecto invernadero

The transcript explains how the temperature on Earth's surface and in the lower atmosphere is higher due to factors beyond just sunlight, primarily the greenhouse effect. Without this effect, the average surface temperature would be around -19 °C.

What causes the temperature on the planet's surface to be higher than expected?

• The distance from the sun

• The greenhouse effect

• The rotation of the Earth

• The presence of oceans

Which layer of the Earth's atmosphere contributes to higher surface temperatures?

• The exosphere

• The stratosphere

• The lower layer

• The mesosphere

What would be the average temperature on Earth's surface without the greenhouse effect?

• Around minus 5 °C

• Around minus 19 °C

• Around 15 °C

• Around 0 °C

Which of the following is NOT a result of the greenhouse effect?

• Sustained life on Earth

• Warmer lower atmosphere

• Increased atmospheric pressure

• Higher surface temperatures

What is the primary source of heat that the greenhouse effect enhances?

• Tidal forces

• Volcanic activity

• Sunlight

• Geothermal energy