Terrific Trees: A SciShow #TeamTrees Compilation

The video discusses the importance of trees, highlighting the Team Trees initiative to plant 20 million trees. It explores the survival of avocados, the struggle of the American chestnut against a deadly fungus, and the mysterious Dancing Forest. The video also explains why leaves change color in autumn and introduces the oldest trees, including the bristlecone pine and Pando, a clonal colony of quaking aspen.

What is the main goal of the Team Trees initiative?

• To plant 20 million trees by the end of 2019

• To save endangered animal species

• To reduce global warming by 50%

• To create urban parks in every city

Why are avocados considered a nutritional anomaly among fruits?

• They contain more sugar than other fruits

• They have high levels of protein and fat

• They are mostly composed of water

• They have no seeds

How did prehistoric farmers contribute to the survival of avocados?

• By using them as currency

• By planting and cultivating them

• By exporting them worldwide

• By cross-breeding them with other fruits

What was the primary cause of the American chestnut's near extinction?

• Deforestation

• A deadly fungus

• Climate change

• Insect infestation

What is the main challenge in reviving the American chestnut tree?

• Preventing insect attacks

• Finding suitable soil

• Increasing sunlight exposure

• Developing blight-resistant trees

What is one theory behind the unusual shapes of trees in the Dancing Forest?

• Excessive rainfall

• Animal activity

• Powerful winds

• Genetic mutation

What is a possible reason for the Crooked Forest's tree shapes?

• Human manipulation for wood shaping

• Natural disasters

• Animal grazing

• Soil erosion

What pigment is primarily responsible for the green color in leaves?

• Xanthophylls

• Chlorophyll

• Anthocyanins

• Carotenoids

What happens to chlorophyll in leaves during autumn?

• It becomes more vibrant

• It changes color to red

• It breaks down, revealing other pigments

• It increases in concentration

What is unique about the root system of Pando, the clonal colony of quaking Aspen?

• It produces the most oxygen

• It is the largest tree in the world

• It is the oldest known living organism

• It has the deepest roots