Answer:
bulk density = 1400 kg/m³
bulk density after compaction = 1750 kg/m³
Explanation:
given data
volume = 0.5 m³
porosity = 40%
oven-dry weight = 700 kg
reduce the total porosity = 20%
to find out
bulk density and bulk density after compaction
solution
we know bulk density formula that is
bulk density = 
...............................1
put here value we get
bulk density = 
bulk density = 1400 kg/m³
and
if porosity decrease 20 % that mean volume change
so total volume = 0.5 
total volume = 0.4 m³
so bulk density after compaction is from equation 1
bulk density = 
bulk density after compaction = 1750 kg/m³
Answer:
From the Silurain to Devonian period
Explanation:
Diversification of fish began during the Silurian period continued during the Devonian Period. The lobe-finned fishes first appeared during the Silurian.
The correct answer is - folk cultures.
The globalization is a process that has its positives and negatives, thus it has its supporters and critics. This process has been gradually connecting people all over the world, get the countries to collaborate better in political and economic ways, as well as spreading out a certain type of culture, mainly the Western culture.
The spreading of the Western culture, with the globalization, unfortunately, threatens the folk cultures all around the world. The younger population are seeing the Western culture as superior and cool, so they are trying to practice it, while in meantime they are neglecting their own traditional culture, so nowadays, lot of the folk cultures, especially the smaller ones, are struggling to survive.
In this example, the biosphere is very dependent on the hydrosphere.
