Compare the amount of municipal solid waste (msw) generated per person in 2010 to that generated in 1960. if we remove the portion that could be recycled from the 2010 average, how would the remainder compare to the average per person msw in 1960 when there was essentially no recycling? the average amount per person msw in 2012 compared to 1960 would be:

The Mazama ash is an example of a marker bed.

Explanation:

Marker beds are distinct strata that are found in other sites in the same region. They can give evidence to age of sediments in a new site if they’ve been assigned a date in other sites. The Mazama ash is consisted of fragments that were ejected into the air by a volcanic eruption of the Mount Mazama, from Oregon Cascades. It blew up 6900 years ago and the ashes were carried by the wind. When the ash settled, it created a marker bed.