Answer:
First step- Statement 1
Second step- Statement 2
Third step- Statement 3
Fourth step- Statement 4
Explanation:
The steps that are involved in the process of hydro-fracking are s follows-
1) Well drilling- A well is initially drilled vertically from the surface into the ground until it reaches the more permeable layers such as the shale layers.
2) Pumping at high pressure in the hole- After drilling a well, the high pressured fracking fluid is pumped into the well using a tank (pumping tank). This fracking fluid id made up of sand, some amount of water as well as various types of chemical are present in it.
3) Cracks at the shale rock- The shale rock has the internal pressure that exerts the fluid to come to the surface.
4) Proppants opens up the cracks- The proppants helps in keeping the cracks open after the retreatment of water.
5) Natural gas obtained- Since these shale gases are now able to flow out of the shale layers, the gases are extracted through the well and stored in the storage tanks.
Thus, the given statements are being arranged in order.
Answer:
The crust rides upon the mantle and is composed of both the oceanic basaltic-plate and the uppermost continental granitic-plate.
Explanation:
The mantle is one of the four layers that form the earth. It is a very hot and dense rock, that is capable of flow. The crust is the outermost layer of the earth and is located just over the mantle. The crust is divided into many plates, that are able to move over the mantle. In fact, the tectonic plates theory is based on the continual movements of the crust and might explain the movement of the different plates, and their directions and interactions. The continental drift theory explains how these movements have been taken place since millions of years ago.
The crust is composed of two layers characterized by different types of rocks. The continental layer, which is the uppermost, is mostly composed of granite. The oceanic layer, on the other hand, is mostly composed of basalt.
In 2011, 17.5% of the Canadian<span> population, or 5.8 million persons, reported speaking at least two </span>languages at home. In 2006, 14.2% did so (nearly 4.5 million persons). In 2011, 11.5% of the population reported speaking both English and another language<span> other than French at home.
(just a statistic to show you that my reasoning is correct.)
Therefore Canadians mostly speak English but they sometimes they speak French too.</span>
Answer:
a. Increases tremendously in luminosity
Explanation:
- The helium flash is a thermal nuclear fusion with large quantities of helium gas into carbon. During the red giant phase, the sun is predicted to have a flash 1.2 billion after it leaves the main sequence and this helium fusion cannot be produced by the low mass stars.
- The sun in this stage will burn out or run out of its fuel and eventually will lead to gravitational collapse. The star being to shrink in size and core starts to collapse.
