1. **ever** → **never** (it should be “booming as never before”)
2. **Countries all** → **Countries around** (more natural phrasing)
3. **'lilderness' regions** → **'wilderness' regions** (remove the extra character)
4. **itself** → **its** (correct possessive form)
5. **abnormal pressures)** → **abnormal pressures)** → **abnormal pressures)** (remove the extra character)
6. **the culture of their habitation** → **the cultures of their inhabitants** (to clarify)
7. **three most significant types of fragile environment** → **three most significant types of fragile environments** (pluralization)
8. **character is their marked** → **character is the marked** (to enhance clarity)
9. **Consequently, most human acts** → **Consequently, human activities** (more precise terminology)
10. **desert areas such as Ayres Rocks** → **desert areas such as Ayers Rock** (correct spelling of Ayers Rock)
 

 * "The market for tourism in remote areas is booming as ever before." Câu này chưa có lỗi sai rõ ràng.
 * "Countries all across the world are active promoting their 'wilderness' regions such as mountains, Arctic lands, deserts, small islands and wetlands to highly spending tourists." Cần sửa: "actively promoting" thay vì "active promoting".
 * "The attraction of these areas is obvious: by defining, wilderness tourism requires little or no initial investment." Cần sửa: "By definition," thay vì "by defining".
 * "But that does not mean that there is no cost. Like the 1992 UN Conference on Environment and Development recognized, these regions are fragile (i.e. highly vulnerable of abnormal pressures) not just in terms of the culture of their inhabitation." Cần sửa: "highly vulnerable to abnormal pressures" thay vì "highly vulnerable of abnormal pressures".
 * "The three mos significant types of fragile environment in these respects are deserts, mountains and Arct areas." Cần sửa: "most significant" thay vì "mos significant" và "Arctic" thay vì "Arct".
 * "An important character is their marked seasonality, Consequently, most human acts. including tourism, are limited to clearly defined parts of the year." Cần thêm một dấu phẩy sau "seasonality" để câu văn rõ ràng hơn.
 * "Tourists are drawn to these regions by their natural beauty and the unique culture of its people." Cần sửa: "their people" thành "their peoples" vì đang nói về nhiều vùng đất khác nhau với nhiều nền văn hóa.
 * "And poor governments in these areas have welcomed the 'adventure tourists', grateful for the currency they bring." Câu này chính xác.
 * "For several years, tourism is the prime source of foreign exchange in Nepal and Bhutan." Cần sửa: "has been" thay vì "is" vì đang nói về một khoảng thời gian trong quá khứ.
 * "Tourism is also a key element in the economics of Aretic zones such as Lapland and Alaska and in desert areas such as Ayres Rocks in Australia and Arizona's Monument Valley." Cần sửa: "Arctic" thay vì "Aretic".
Các lỗi sai chính:
 * Sai về ngữ pháp: thiếu từ, sai dạng từ, sai cấu trúc câu.
 * Sai về chính tả: viết sai từ.
Các lỗi cần lưu ý:
 * Viết hoa: Tên riêng như "Arctic" phải viết hoa chữ cái đầu.
 * Dấu câu: Dấu phẩy, dấu chấm cần đặt đúng vị trí để câu văn rõ ràng.