Answer:
Physical weathering enhances the rate of chemical weathering .
Explanation:
Physical weathering is the breaking down of rocks by various processes like freezing and thawing without altering the rocks chemical composition.
While, chemical weathering involves the disintegration and dissolution of rocks by the chemical processes like oxidation , carbonation and solution processes etc.
Generally a fractured rock can easily be weathered by chemical agents rather than a normal fractured rock.
So ,
when a rock is already subjected to physical weathering, the rock will develop cracks on it and when the chemical agents comes in contact with that rock, the chemical solution will penetrate into those cracks and will dissolve the rocks at a rapid rate.
The hurricanes have very negative effect in the Central Americana and Caribbean regions.
Explanation:
The hurricanes are some of the most dangerous natural hazards in the world. They form usually in the warm waters between South America and North America, or rather in the Caribbean region. The strong winds and enormous amounts of rainfall have varying effects, depending on the place, and depending on the type of the place that has been hit by them.
The Caribbean and Central American regions are mostly consisted of poor, developing countries. The infrastructure is of bad quality, the organization levels are low, and the warning systems for dangers are often not functional or notify the people too late. This all results in tragedies when stronger hurricanes hit these regions, with the people having no time to escape because they have been notified too late, or not notified at all. The majority of the houses and other infrastructure gets totally destroyed, and the bad organization often lives the people on their own.
The results of this unfortunately are thousands of dead, badly injured, homeless, lack of food, lack of freshwater, and enormous material damage. This can easily be seen in the likes of:
- Dominican Republic
- Haiti
- Belize
- Guatemala
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Answer:
The diagram shows 4 possible options for the centripetal force acting on the object represented as a black dot. The correct option is the direction marked as C since it points inwards and ties the object to its circular motion.
Answer:
1. chemical properties
2. physical properties
Explanation:
1. chemical properties
2. physical properties
Since ,
Earth is distributed into two ways i.e. - chemically or mechanically.
By chemically ,
The Earth is composed of the crust, the mantle and the core whereas ,
By mechanically or ( by the state of liquids) ,
The Earth is divided into different spheres , i.e. , the lithosphere, asthenosphere, mesospheric mantle, outer core, and the inner core.( which is based on physical properties )
