Dark patches on Venus could be signs of microbial life

Venus once had water but became inhospitable due to a greenhouse effect. Recent studies suggest microorganisms might exist in Venus' lower cloud layer, where conditions are more Earth-like. Dark patches on Venus could be microbial blooms. Some Earth bacteria can survive in high altitudes and harsh environments, hinting at the possibility of life in extreme conditions on Venus.

What significant change occurred on Venus after having water for 2 billion years?

• The atmosphere became rich in oxygen.

• The planet's surface became icy.

• A runaway greenhouse effect raised temperatures.

• Venus developed a magnetic field.

Where do researchers suggest microorganisms might be living on Venus?

• In the lower cloud layer.

• In the upper atmosphere.

• On the planet's surface.

• In the planet's core.

What are the dark patches on Venus thought to be?

• Meteor impacts.

• Dust storms.

• Volcanic eruptions.

• Microbial blooms.

What is a characteristic of the dark patches on Venus?

• They consist of water vapor.

• They are permanent and unchanging.

• They change shape and contrast over days.

• They are visible only at night.

What ability do certain Earth bacteria have that relates to the conditions on Venus?

• They can photosynthesize in the dark.

• They can survive in high altitudes.

• They can produce oxygen.

• They can live without water.