PLEASE HELP!! Match how far back in the earth's climate history we can learn about from each proxy.

Clam shells

Ice cores

World's oldest rocks

Tree cores

Ocean sediments

1. 150 million years ago

2. 800,000 years ago

3. 10,000 years ago

4. 200 million years ago

5. 3.8 billion years ago

These changes can be natural, such as through variations in the solar cycle.

Clam shells

2. 800,000 years ago

Ice cores

1. 150 million years ago

Oldest rocks in the world

5. 3.8 billion years ago

Tree cores

3. 10,000 years ago

Ocean sediments

4. 200 million years ago

With this information we can conclude that these changes may be natural, such as through variations in the solar cycle. But since 1800, human activities have been the main driver of climate change, mainly due to the burning of fossil fuels like coal, oil and gas.

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answer: c

explanation: