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If a graph represents the decay of strontium 90 in an igneous rockwhat event occurred at 0 years on the horizontal axis?
At 0 years on the horizontal axis of a graph representing the decay of strontium-90 in an igneous rock, the event that occurred is the initial formation of the rock, marking the time when strontium-90 was first incorporated into the mineral matrix. This point typically represents the moment when the radioactive isotope began its decay process, starting from its original quantity at that time.
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Name 5 things that dogs were bred to do?
1fight2guide3exercise humans4be awesome5 rockWhat do you mean by 'rock'? I can't think of any dogs that rock from side to side.
When soil first forms over bare rockwhat is it made of?
When soil forms over bare rock, it is made up of weathered rock particles, organic matter from decaying plants and animals, and a mix of minerals and nutrients. Over time, soil formation processes such as weathering, erosion, and biological activity continue to enrich and develop the soil profile.
What term describes the remains impressions of plants and animals in sedimentary rockwhat term describes the remains impressions of plants and animals in sedimentary rock?
The term that describes the remains or impressions of plants and animals in sedimentary rock is "fossils." Fossils can include not only the actual remains of organisms but also their traces, such as footprints, burrows, or imprints. They provide valuable information about past life forms and their environments. Fossils are crucial for understanding the history of life on Earth.
