Earth Science Concepts and Questions

The video tutorial covers the second part of the atmosphere topic. It begins with a recap of previous lessons on biosphere, atmosphere, and climate. The tutorial explains the components of the biosphere, the layers of the atmosphere, and the differences between weather and climate. It discusses the effects of solar radiation and the greenhouse effect. The video also introduces the concepts of latitude and longitude, explaining their significance in geography. The tutorial concludes with a summary and farewell to the students.

What is the biosphere composed of?

• Lithosphere and atmosphere only

• Only the atmosphere

• Lithosphere, hydrosphere, and atmosphere

• Hydrosphere and atmosphere only

Which layer of the atmosphere is closest to Earth?

• Exosphere

• Troposphere

• Mesosphere

• Stratosphere

How is weather different from climate?

• Climate is affected by daily changes

• Weather is long-term, climate is short-term

• Weather is short-term, climate is long-term

• Weather is affected by latitude only

What percentage of the atmosphere is nitrogen?

• 21%

• 78%

• 1%

• 50%

What is the primary source of solar radiation?

• The Sun

• The Stars

• The Earth

• The Moon

What is the greenhouse effect?

• The warming of Earth by ocean currents

• The blocking of sunlight by clouds

• The cooling of Earth by reflecting sunlight

• The trapping of heat by gases in the atmosphere

What are latitudes?

• Imaginary lines running from North to South

• Lines that measure time zones

• Imaginary lines running from East to West

• Real lines on the Earth's surface

Which line separates the Northern and Southern Hemispheres?

• Tropic of Capricorn

• Tropic of Cancer

• Equator

• Prime Meridian

What is the significance of the Prime Meridian?

• It marks the equator

• It is the longest line of latitude

• It is the zero degree longitude

• It is the line of maximum temperature

How many degrees of longitude are there on Earth?

• 90

• 180

• 360

• 270