The analysis of samples from layers G and F indicates the following proportions of parent isotope to daughter product. If the half-life of the parent is known to be 75 million years, what are the ages of the two layers?

What type of damages can you cause while driving

In the late 1990s, brazil’s poor people protested about crowded cities land distribution mining permits industrial pollution

Chris lives in a city that experiences heavy rainfall with average annual precipitation of 882 millimeters. it is warm all year.mark lives in city with an average annual rainfall of 40 millimeters. it has hot summers and cool winters.chris's city is in a climate, while mark's city is in a climate.