The half-life of Isotope-Y is 20 minutes. If a scientist starts with a 60g sample, how much of the original isotope will remain after 1 hour (60 Minutes)?

In the formation below which law would best apply the the layers visible on the bottom of the Strata?

What type of front is D?

A geologist observes an igneous intrusion cutting through three layers of limestone. According to the Law of Cross-Cutting Relationships, which of the following is true?

Which air mass represents a continental tropical air mass?

Paramagnetic contrast media (Gadolinium-based), do not cross the intact blood-brain-barrier.

A) Did you have any issues with the exam I should know about?    B) Wishing you the best of luck! Thank you for being apart of this class. Please let me know if there was any subject you loved/hated or any feedback you would like to share about class. No judgments here will use this to help plan for the future 🙂  You can also put N/A if you’d rather not share:) 

  Using the strata above complete the following:A) List the order in which the layers formed(2pt), B) The law that matches each layer (2pt). C)Then explain when they changed shape and how(2)(geologic terms could include: Plate tectonics, earthquakes, volcanoes, convergent,divergent, transform boundaries, Weathering) 

Which emergency indication best describes the use of adrenaline in radiology for allergic reactions?

Indications for diazepam include: