一、选择题(每小题3分,共20小题,60分)读自然环境某物质循环的局部示意图(图1),完成1～2题。1.若该图是水循环的局部示意图,其中椭圆表示海洋,则箭头②可能表示( )A.地表径流 B.地下径流C.大气降水 D.蒸发2.若该图是岩石圈物质循环的局部示意图,其中椭圆代表沉积岩,则①可表示( )A.岩浆活动 B.变质作用C.外力作用 D.地壳运动 First, the multiple-choice questions (3 points for each question, a total of 20 questions, 60 points) to read a partial schematic diagram of a material cycle in the natural environment (Figure 1), to complete 1 to 2 questions. 1. If the map is a partial schematic of the water cycle, where the ellipse represents the ocean, then the arrow 2 may indicate () A. Surface runoff B. Underground runoff C. Atmospheric precipitation D. Evaporation 2. If the map is part of the lithosphere material cycle Schematic diagram, in which the ellipse represents sedimentary rock, then 1 can represent () A. Magmatic activity B. Metamorphism C. External force effect D. Crustal movement