[march]Martian ‘blueberries’ find a parallel on Earth

Question 1

Context?

Answer 1

In 2004, NASA’s Mars exploration rover ‘Opportunity’ found several small spheres on Mars, informally named Martian blueberries. The study of the mineralogy noted that they were made of iron oxide compounds called haematites.

Similar haematite concretions have been found in Kutch, Gujarat. These have been called the Jhuran formation.

-Basically,NASA la mangalvar je sapadlay tech gujrat madhe sapadlay.

Question 2

Inference?

Answer 2

• Haematite concretion is normally formed through precipitation from aqueous fluids.-> Mhnje yatun kalata ki mngalavar adhi pani hota
• also indicate that the planet had an atmosphere with oxygen as haematites need oxygen to stabilise.-> Mhnje Oxygen pan hota.