iridium is a substance found only in asteroids and other space objects. the graph shows the amount of…

iridium is a substance found only in asteroids and other space objects. the graph shows the amount of iridium found in different sediment layers of earth. they are marked off into 17 second - interpreting time. what most likely happened in sediment layer 5? a massive volcano erupted, causing global warming and lava flow, which in turn caused mass extinction. more iridium was produced by space objects and dumped by local factories. the impact of a space object led to the deposit of a layer of sediment high in iridium. fewer impacts lead to a drop in iridium levels and a mass extinction caused by a lack of sunshine.

iridium is a substance found only in asteroids and other space objects. the graph shows the amount of iridium found in different sediment layers of earth. they are marked off into 17 second - interpreting time. what most likely happened in sediment layer 5? a massive volcano erupted, causing global warming and lava flow, which in turn caused mass extinction. more iridium was produced by space objects and dumped by local factories. the impact of a space object led to the deposit of a layer of sediment high in iridium. fewer impacts lead to a drop in iridium levels and a mass extinction caused by a lack of sunshine.

Answer

Answer:

The impact of a space object led to the deposit of a layer of sediment high in iridium.

Brief Explanation:

Iridium is rare on Earth's surface but common in asteroids. A spike in iridium in a sediment layer suggests a space - object impact.