Its the Appalachian mountains!
A person whose vision is 20/40 can see an object from 20 feet away that a person with 20/20 vision can see from 40 feet away.
A Snellen chart is a type of eye chart used to assess visual acuity. Snellen charts are named after Herman Snellen, a Dutch ophthalmologist who invented them in 1862. .
A Snellen chart is commonly used to assess visual acuity. Snellen charts show letters getting smaller and smaller. 20/20 is considered "normal" vision. This means that at 20 feet, the test subject sees the same line of letters that a person with normal vision sees at 20 feet.
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Characteristics of extrovert person are: interest in other people and things around them. This type of personality is motivated by external factors and he was a influence on social environment. Extrovert like to be in company whit other people. They do not like to be alone-they are well socialized and love to going out and meet a new persons.
C. Haiti has had many powerful earthquakes and most are devastating. However, i am not completely sure of this answer.
Answer:
Plastics.
Explanation:
These are plastics. Plastics are neither sinkable( being lighter) nor they are biodegradable( they do not degrade by themselves are remain in the ecosystem for years). Thus, causing alot of damage to marine life forms. Makinf to difficult for them to gain sufficient oxygen and sunlight.