Question

question 7 1 pts which of the following describes a sediment containing a wide variety of grain sizes? poorly - sorted fissile mature foliated question 8 1 pts in which of the following depositional environments would you expect a deposit of interbedded mudstones and siltstones that includes fossil evidence of the following animals: freshwater snails, alligators, and three - toed horses? river delta coastal beach desert alpine stream

Explanation:

For Question 7, sediments with a wide variety of grain - sizes are called poorly - sorted. Fissile refers to the ability to split into thin layers, mature sediments have well - rounded grains and are well - sorted, and foliated is a term for metamorphic rocks with planar arrangements of minerals.
For Question 8, river deltas are environments where interbedded mudstones and siltstones can form and can contain fossils of freshwater snails, alligators, and three - toed horses. Coastal beaches are mainly sandy, deserts are arid with different sediment types, and alpine streams have coarser sediments and different fauna.

Answer:

Question 7: poorly - sorted
Question 8: river delta