What statement about the subcontinent are accurate

Why is the huronian supergroup rock formation particularly interesting to scientists? because it looks like a cross-section of a giant, stone encyclopedia because it formed during the period when oxygen began to accumulate in the atmosphere because it contains unusually large amounts of oxygen and sulfur because it dramatically altered the planet's development when it first formed

Ineed , i need to create a power point in life science here is a picture explaining a little what the topic is about, me with some information for my slides : (

In which of the following countries would a person have the last religious freedom?