Global Warming and Seasonal Changes

The video tutorial covers the start dates of seasons and their significance, explaining equinoxes and solstices. It discusses the impact of these seasonal changes on daylight duration in different hemispheres. The session also addresses global warming, its causes, and potential consequences, emphasizing the importance of taking action to mitigate its effects.

Which of the following dates marks the beginning of summer in the Northern Hemisphere?

• 21 March

• 21 June

• 21 December

• 23 September

What season starts in the Southern Hemisphere on 21 December?

• Summer

• Spring

• Winter

• Autumn

On which date does the Northern Hemisphere experience the longest day?

• 21 March

• 23 September

• 21 June

• 21 December

What phenomenon occurs on 23 September?

• Start of winter in the Northern Hemisphere

• Equal day and night duration globally

• Shortest day in the Southern Hemisphere

• Longest day in the Northern Hemisphere

Which season begins in the Northern Hemisphere on 21 March?

• Spring

• Summer

• Autumn

• Winter

What is the primary cause of global warming?

• Volcanic eruptions

• Solar flares

• Increased greenhouse gases

• Deforestation

Which of the following is NOT a consequence of global warming?

• Increased biodiversity

• More frequent extreme weather events

• Melting polar ice caps

• Rising sea levels

What is the expected impact on Holland if global warming continues unchecked?

• Increased agricultural yield

• Expansion of forests

• Decrease in population

• Submersion of large areas

How does global warming affect water sources?

• Increases freshwater availability

• Decreases water pollution

• Causes water sources to dry up

• Contaminates water sources

What is a potential solution to mitigate global warming?

• Increasing fossil fuel usage

• Ignoring environmental regulations

• Reducing greenhouse gas emissions

• Deforestation