Humans are a major factor in the extinction of species?

Question

There is much evidence to indicate that humans are a major factor in the extinction of species. Some researchers estimate that one-fifth of the earth’s current species will be extinct by 2030. Assume that you are an environmental scientist employed by the Fish and Wildlife Service.

examining the effect of four types of human activity on the biodiversity of aquatic systems, both freshwater and saltwater. The human activities you will examine are:

Agriculture

Tourism

Shrimp Farming

Fishing

Answer 1

Most extinctions are prehistoric

Answer 2

Do your own homework. Help with a math problem is one thing, but this is ridiculous.

Answer 3

Humans are the only factor in the extinction of species.

Take Easter Island for example! Easter Island used to have palm trees galore. Then they cur every last one down, several hundred years ago, to move their monolithic statues around, never stopping to think about saving at least one coconut.

Humans are the only species that have lost their common sense.

Answer 4

A Human? you don't describe hazardous creature who's degrading nature as human, they're pest, and they're feed with money and gold. When they're died I'll put my S**T on their grave and P** on their names.

Answer 5

Malik, Malik, Malik,... Amusart, u know am telling Mr. Bent, right? Such a sucker....of all place, Yahoo Answers. Best share some of that information boy....better yet, I want best answer of here.

Answer 6

1. Agriculture is only 6000 years old.

2. Tourism is only 200 years old.

3. Shrimp farming is only 30 years old.

4. Fishing is only 6000 years old.

Please check the chart.  Thank you.

http://upload.wikimedia.org/wikipedia/en...

Answer 7

Of the earth's estimated 10 million species, 300,000 have vanished in the past 50 years. each years, 3,000 to 30,000 species become extinct.

Human activity is speeding that up since we tend to overpower all the other species in one way or another.

you left out the most important of all

human expansion .animal loss of habitat .deforestation,

don`t ask pre designed questions because you strangle informative answers .

Eco tourism is what can save animal habitats .

Drag netting destroys huge marine populations

Slash and burn farming ,agriculture and

Deforestation,expanding settlement  destroy most animal habitat

as well as desertification because of the over pumping carbon aquifers, rivers dry up ,habitats are changed and animals die off.

Global warming is also beginning to have its affects ,because some microbiotic species are disappearing others are becoming invasive ,and the insect life that follows is affected and changed ,and everything that follows is affected in both flora and fauna.

And we all know about ice fields melting, which affects all life that is connected

here are some general answers that cover your question .

deforestation

http://answers.yahoo.com/question/index;...

can wild life be saved and is it important

http://answers.yahoo.com/question/index;...

what is causing changes in wild life

http://answers.yahoo.com/question/index;...

hunting

http://answers.yahoo.com/question/index;...

why we should save animals

http://answers.yahoo.com/question/index;...

overpopulation

http://answers.yahoo.com/question/index;...

eco tourism

http://answers.yahoo.com/question/index;...

How can we stop poaching

http://answers.yahoo.com/question/index;...