Third layer of volcanic ash

Assignment Help Biology
Reference no: EM132578670

A third layer of volcanic ash, older than the two other layers, contains zircon crystals that are 60% uranium-238:40% lead-206. Approximately how old is this layer? Explain your reasoning.

Reference no: EM132578670

Questions Cloud

What cardiac disorder could this man be experiencing : A 52 year-old white male is admitted to the emergency room complaining of pain in the left side of his chest, neck
Have you ever stolen to be able to buy drugs : Have you ever used a drug without knowing what it was or what it would do to you? Have you ever stolen to be able to buy drugs?
Homozygous recessive beetle to generate f2 offspring : You breed true breeding, four legged, long horned, beetles with true breeding, six legged, short horned, beetles.
Analyze the the securities exchange commission : Describe and analyze the The Securities Exchange Commission (SEC) Act. What does the Dodd-Franc Act add to the SEC Act
Third layer of volcanic ash : A third layer of volcanic ash, older than the two other layers, contains zircon crystals that are 60% uranium
How you made your decision and share the outcome : We all have to make decisions and understanding the process that goes into good decision making is critical for positive outcomes. You did a really nice job of.
Discuss the first land flora : Transition to Land Describe and discuss the first land flora (vascular plants) that evolved on Earth.
Effects of a healthy lifestyle choice : As you search for a study/article to critique, consider choosing an article/study that relates to a metabolic or endocrine disorder
Describe the diverse elements within islam : Islam is often viewed as a monolithic religious movement over against the great diversity within Christianity. Describe the diverse elements within Islam.

Reviews

Write a Review

Biology Questions & Answers

  Describe the different steps of a growth curve for microbes

Describe the different steps of a growth curve for microbes, and what factors influence each step. Explain in 100+ words.

  What are the effects of body size

What are the effects of body size, activity level, and thermic regulation (endo- or exo-) on metabolic rate.

  State and make a map of genes showing gene order

Make a map of these genes showing gene order and distances between genes. SHOW ALL WORK to get credit!! Use addition paper if needed.

  What are the probable genotypes of grandparents

What are the probable genotypes of grandparents, children, and grandchildren? Once complete, build a pedigree to this family.

  Explain the mass and atomic number of the element

32P is an unstable isotope of phosphorus that has a half-life of 14.29 days. Atoms of this isotope undergo beta decay in which a neutron decays into a proton and an electron.

  Critical part in human beings

Ear is a very critical part in human beings. what other sensory function does it provide apart from hearing?

  How is the amount of oxygen limited

How is the amount of oxygen limited in its bonding to HB by the pH of the blood and the amount of carbon monoxide in blood.

  In what ecosystem province is charleston

In what ecosystem province is Charleston, SC?

  Questions for sound and the ear

What is the Fourier theorem? Find me an equation or picture that describes the decomposition of a square wave into its Fourier components.

  Explain what is the frequency of the wildtype allele

You have a population of fruitflies that is in Hardy-Weinberg equilibrium. 25% of the population have black bodies (recessive), while 75% are wildtype (dominant). What is the frequency of the wildtype allele (p)?

  How are humans beneficial to bacteria

How are humans beneficial to bacteria and other organisms inside of us?

  What type of treatment is available for the patient

What type of treatment is available AND what is the outcome/life expectancy for the patient under normal circumstances if treatment is sought?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd