In a study, those {#blank#}1{#/blank#}ate more organic food had fewer cancers. The study that followed 70,000 {#blank#}2{#/blank#}, most of them women, for five years has reported that the most frequent consumers of organic food had 25 percent fewer cancers than the people who never ate organic. The women who ate the most organic fruits, vegetables, dairy products, meat and other foods had a {#blank#}3{#/blank#} big drop in breast cancers. People who buy organic food {#blank#}4{#/blank#} that it's better for their health, and they're willing to pay clearly for it.

    However, some scientists noted the study did not prove an organic diet would cause a reduction in cancers and called for more long-term government-funded studies to confirm the results. They hold the view {#blank#}5{#/blank#} evidence of the benefits of eating organic has been lacking, and it is more important for people to simply eat more fruits and vegetables whether the produce is organic or not, if they want to prevent cancer.

    Eco-tourism involves people travelling to beautiful but environmental sensitive place. Such trips are usually carried out with a(n) {#blank#}1{#/blank#} guide. Over recent years  this type of travel has been steadily gaining {#blank#}2{#/blank#} as more people search for new travel experiences.

    It is obvious that eco-tourism is beneficial in many aspects. First, all the money spent by the tourists is used to {#blank#}3{#/blank#} the important environmental spots they visit. Second, it helps visitors to better understand the environment, which is sure to {#blank#}4{#/blank#} their knowledge of the world. Furthermore, this style of travel is also more {#blank#}5{#/blank#} of the local culture.

    Compared to normal tourists, eco-tourist use energy more {#blank#}6{#/blank#}, save water and produce less rubbish by finding ways to recycle it. These behaviors have a(n) {#blank#}7{#/blank#} and lasting effect on the local environment.

    Two things are needed to make eco-tourism a success. First, it should be done in small groups. And second, because it requires {#blank#}8{#/blank#} effort, both eco-tourists and locals must be sincere in their devotion to improving the environment.

    Green travel provides local people with jobs in parks, hotels and shops. One great achievement of eco-tourism has been the {#blank#}9{#/blank#} of illegal hunting. Former hunters can now work as guides to help keep the animals safe in their natural surroundings.

Peru is one country using eco-tourism to promote respect for the environment. It's not able to take better care of its rainforests because of {#blank#}10{#/blank#} on more sustainable travel.

    In addition to this, local people's living-standards have improved. Many others are now following Peru's example and using eco-tourism to preserve their environment for the future generations.