Tree Rings and CC

What is the primary focus of paleoclimatology?

• The study of ancient marine life.

• The study of past climate change.

• The study of current atmospheric conditions.

• The study of future weather patterns.

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How are annual growth rings formed in trees from temperate climates?

• By growing a new layer of bark each year.

• By producing large, light-colored cells in winter and small, dark cells in summer.

• By growing large, light tan cells in spring and smaller, darker cells in late summer/fall.

• By shedding their leaves in autumn and regrowing them in spring.

What environmental factor primarily influences the width of tree rings in dry climates?

• Temperature

• Rainfall

• Sunlight exposure

• Soil composition

How far back in time can tree rings provide information about past climate conditions?

• A few decades

• A few centuries

• Up to about 2,000 years

• Only the last 100 years