根据第一段的“This means that as well as carrying seaweed and pieces of materials quickly out to sea, they can rapidly sweep away even the strongest swimmers. Around 80 percent of all lifeguard rescues are caused by powerful rip currents pulling a swimmer into danger.(这意味着,它们不仅能迅速...
题目What is the main cause of ocean currents? A. Wind B. Gravity C. Magnetic fields D. Temperature differences 相关知识点: 试题来源: 解析 A。本题考查洋流的主要成因。选项 A,风是洋流的主要动力来源;选项 B,重力不是洋流的主要成因;选项 C,磁场对洋流的影响较小;选项 D,温度差异会引起海水密度...
question 1 A、Ship traffic in the Atlantic. B、Warm currents in the ocean. C、 Exhaust from cars in Europe. D、Particles emitted by power plants. What has caused the thick clouds in the photos taken by a NASA satellite? 新闻开头提到,美国宇航
Questions 1 to 2 are based on the new report you have just heard.Question 1 What has caused the thick clouds in the photos taken by a NASA satellite?A Warm currents in the oceanB Ship traffic in the AtlanticC Particles emitted by power plantsD Exhaust from cars in Europe...
This transition is mainly characterized by an important increase of the interlayer metallic distance (+0.137nm) and a shortening of the intralayer metallic distance Cu-Cu (0.017 nm). These features are due to a conformational change of the molecular part [NH3-(CH2)4-NH3] from left-handed to...
Rip currents (裂流) are like the rivers of the sea, transporting water near the shore back out into the ocean depths. The presence of these currents can be hidden by the wild movements of the surrounding waves. This means that as well as carrying seaweed and pieces of materials quickly ...
Questions 1 to 2 are based on the new report you have just heard.Question 1 What has caused the thick clouds in the photos taken by a NASA satellite? A Warm currents in the ocean B Ship traffic in the Atlantic C Particles emitted by power plants D Exhaust from cars i...
百度试题 结果1 题目What primarily drives the deep ocean currents? A. Coriolis forces. B. Deep sea vents. C. Density differences between water bodies. D. Rotation of the E. arth.E) Winds. 相关知识点: 试题来源: 解析 C 反馈 收藏
The many massive layers of water beneath the wavy surface of an ocean are considered deep ocean layers, and an estimated 90 percent of an ocean is deep water. Different forces combine to cause that water to generate deep ocean currents that flow around t
What is the pressure of the Earth's mantle? How do scientists know there is convection in the mantle? What is tectonic plate movement? Why does convection occur in the asthenosphere? What is the mantle of the Earth? Ocean currents are formed by what type of heat transfer?