Coal workers' pneumoconiosis (CWP), commonly known as "black lung disease," occurs when coal dust is inhaled. Over time, continued exposure to the coal dust causes scarring in the lungs, impairing your ability to breathe.
It becomes a metamorphic rock, hence the name. Its "metamorphosis" is brought on by the heat and pressure.
Answer:
Earth has two poles North and South they are considered as the two corners of earth.
Explanation:
The imaginary i.e equator or zero degrees, the line divides the equator into two parts of North and South zones named as Poles. Seen as ends of the earth and composed of Positive and Negative physical properties.
Located at a 90 degree to North and South of the geographic equator. Generating magnetic fields. these have formed by the earth rotation and form a part of arctic and antarctic circles cover from 60 to 90 degrees on both the hemispheres.
The poles are a window of earth past, many times also here have been shifts in the history of the earth poles and they have shifted earlier in the north pole was located over Canada, and the south pole was near South America. Alfred Wegener in his plate tectonic theory also mentioned the polar wandering forces.
For the availability of land
Answer:
A. Imperialism
Explanation:
European Imperialism in Africa was termed as the "<em>Scramble for Africa."</em> This was a time when majority of the countries in Africa were colonized by the Europeans. Much of their land was controlled because of having rich natural resources. The colonizers also imposed<u><em> economic policies that were unfair to the Africans.</em></u> Families were separated because of "forced labor." Men were obligated to work on the<em> mining areas and farms.</em> This left the women and children devastated. Since Europeans did not respect the traditions of the Africans, it led to the breaking up of values in the society.
