A life on our planet

Which geological era, which we are living in, does Attenborough call "our garden of Eden"?

• Holocene

• Pleistocene

• Technoscene

• Neogene

What was the "buried treasure" which David Attenborough spent all his spare time looking for as a boy?

• Fossils

• Ironstone

• Truffles

• Coins

In 1960, David Attenborough first encountered the Serengeti horde of 1.75 million. What does the name of their habitat, "Serengeti", mean?

• Neverending Desert

• Endless Plains

• Lush Rainforest

• Great Lake

Our climate didn't begin to deviate from its usual fluctuations until the 1990s. Why was that?

• The oceans had been absorbing the excess heat.

• Levels of carbon in the atmosphere were safe before the 1970s.

• The hole in the ozone layer caused some Antarctic ice to melt.

• Feedback loops were triggered in the 1980s.

According to Attenborough, over 1/3 of mammals are humans; what category of mammals, at 60%, makes up the largest proportion on Earth?

• Livestock

• Wild land animals

• Domestic pets

• Marine mammals

Attenborough claims that science predicts that by the 2030s, the Arctic will be completely free of ice in summers. Which of the following will occur as a consequence of this?

• Half a million species will be wiped out.

• Global warming will decelerate.

• Global warming will accelerate.

• Polar bears will migrate to Antarctica and live on penguins.

Frozen soils in the planet's north have locked up which powerful greenhouse gas, that the melting of the soils would release into the atmosphere?

• Methane

• CO2

• Nitrous oxide

• Ozone

Scientists predict the Earth will be 4 degrees Celsius hotter by the 2100s, according to David Attenborough. Which of the following constitutes what one outcome of this will be?

• Antarctica will become a tropical paradise.

• Humans will become extinct.

• More land will become inhabitable.

• Much of the planet will become uninhabitable.

To reduce climate change, Attenborough recommends we begin to obtain our electricity from solar, wind, water and which other source?

• Nuclear

• Biofuel

• Geothermics

• Gas

We can rewild the oceans by increasing fish populations (including for consumption) by which of the following means?

• Farming fish

• Making one third of coastal seas no fish zones and restricting fishing

• Overfishing predatorial fish species

• Shouting at whalers