Ngoại lực là gì?
Đáp án đúng là: D. lực phát sinh từ bên ngoài, trên bề mặt Trái Đất.
Giải thích:
Ngoại lực là các lực phát sinh từ bên ngoài, tác động lên bề mặt Trái Đất, gây ra các quá trình biến đổi địa hình như phong hóa, xâm thực, bồi tụ.
Các câu hỏi liên quan
- This concert marks nine years since the death of Trinh Cong Son, a prominent ____ of modern Vietnamese music.
- Choose the option (A, B, or C) that best completes each numbered blank in the passage.TREES BRING HANOIANS CLOSER TO NATURECity planners have claimed trees ___(1)___ an important role in an urban environment. Children growing ___(2)___close to nature have better health, while walking in parks reduce blood pressure, stress and obesity. The problem is to select the right trees and ___(3)___ them.Ha Noi is considered one of the greenest cities in Viet Nam thanks to its beautiful and precious trees. Ancient trees in Ha Noi are frequently ___(4)___ in poems. Each street can be ___(5)___ by a tree. To local residents, the hundred-year-old trees that line the streets are more than just beautiful, they are a part of the city’s identity.
- Ý nào không phản ánh đúng vai trò của Việt Nam trong ASEAN hiện nay?
- Today, childhood is spent mostly indoors watching television, playing video games and ___(1)___ the Internet. When children do go outside, it tends to be for scheduled events like a soccer match or a fishing derby. These events arc held under the watch of adults.The shift to an indoor childhood has accelerated in ___(2)___ past decade, with a significant decline in spontaneous outdoor activities such as bike riding, swimming and touch football, according to separate studies by the National Sporting Goods Association. ___(3)___, a child is six times more likely to play a video game on a typical day than to ride a bike.Indoor childhood has brought about some changes which can be seen in children’s bodies. In the 1960s, 4% of kids were obese. Today, 16% are overweight. The changes can also be seen in their ___(4)___. Studies indicate that children who spend plenty of time outdoors have a longer attention span than those who watch ___(5)___ television and play video games.
- Ngoại lực là gì?