判断 阅读下面的材料，判断下列句子是否符合短文内容。符合的涂T，不符合的涂F。（T="True," F = False)
   What is color? Why do some of the things around us look red, some green, others blue?
   Colors are really made by reflected(反射) light. We can see colors because most of the things reflect light. Something is red, for it reflects most of the red light. In the same way, if something is green, it reflects most of the green light. If something reflects all light, it is white. If it doesn't reflect any light, it is black.
   Some light is reflected. But the other light is taken in and turns into heat. The darker the color is, the less light is reflected, and the more light is taken in. For this reason, dark-colored clothes are warmer in the sun than light-colored clothes.

 读西北地区略图，回答问题。

（1）图中①是 ____山脉。是我国 ____区域和  ____ 区域的分界线。

（2）图中②是 ____ 山脉。是我国地势第二阶梯和第 ____ 阶梯的分界线。

（3）图中从A到B 到C降水量逐渐 ____ （增加或减少），主要原因是____ 

（4）西北地区农业以____  业为主。简述此生产特点对人们生活的影响。____ 

如图是一种叫“干水”的物质。每个“干水”粒子是外层包上沙质硅的小水滴，它吸收二氧化碳的能力比普通水高3倍。下列叙述正确的是（  ）

试说明下列各图小实验所反映的物理知识：