Answer:
The Bulk density = 1.3 g/cm³
the porosity of the sample is 132 cm³
Explanation:
Given:
Volume of cylinder = 260 cm³
Mass of container and the soil = 403 g
Mass of the empty container = 65 g
Thus,
The mass of the soil is = 403 - 65 = 338 g
Now,
The Bulk density = 
or
The Bulk density = 
or
The Bulk density = 1.3 g/cm³
also,
average particle density for mineral soil is usually given as 2.65 g/cm³
i.e the air present in the given soil sample has reduced its density from 2.65 g/cm³ to 1.3 g/cm³
The mass of the whole sample = Volume × Density
= 260 × 2.65
= 689 gm
but,
The actual mass of the dry sample = 338 g
thus,
Mass of air in the sample = 689 - 338 = 351 g
Therefore,
the volume of 351 g soil = 
= 
= 132.45 cm³
so the porosity of the sample is 132 cm³
Answer:
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Answer:
Explanation:
1. glacial tills and cirques Till is derived from the erosion and entrainment of material by the moving ice of a glacier. It is deposited some distance down-ice to form terminal, lateral, medial, and ground moraine. Cirques form by the accumulation of snow and ice avalanching from upslope areas. The size of cirque glaciers ranges from glaciers that are completely limited within hosting bedrock hollows, to glaciers that form the heads of large valley glaciers.
2. ENERGY FROM THE SUN heats up the air at the equator most because of the curvature of the earth. This tends to rise up then head toward the poles where it cools and moves closer to the surface and then more or less back toward the equator.
THE ROTATION OF THE EARTH makes the movement of air relative to the surface of the earth seem to deflect. This Coriolis effect doesn't affect your toilet flushing, but does influence large scale wind patterns and hurricanes.
THE LATITUDE OF VANCOUVER roughly half way between the equator and the north pole positions us so the large scale wind patterns tend to bring us winds from the west.
THE PACIFIC OCEAN sits to the west. Winds pick up moisture from it toward shore. Large bodies of water also tend to hang on to energy that keeps our temperatures more moderate.
THE COAST MOUNTAINS push the moist air upward so it cools off and can't hold on to as much moisture, so it rains.
THE TILT OF THE EARTH'S AXIS relative to the plane of our orbit around the sun means we are tilted away from the sun during winter, so it's cooler. This results in a greater temperature gradient between the equator and the north pole, and the winds get stronger. The cooler temperatures combined with more moisture-ladened wind brings more rain during winter.
Answer:
Explanation:
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