44 Habitats and the Environment-Low

Habitats and the Environment Written by Kira Freed

《栖息地与环境》作者:基拉·弗里德

Introduction Can you imagine a wild polar bear in Hawaii? How about a palm tree at the South Pole? You may know that these things do not happen. But do you know why not? A habitat has the food, water, air, and shelter a living thing needs. Habitats have many parts that work together. As you read, you will learn why the pictures on this page could not be real.

你能想象夏威夷的野生北极熊吗? 在南极种棵棕榈树怎么样? 你可能知道这些事情不会发生。 但你知道为什么吗?栖息地有生物所需要的食物、水、空气和住所。 栖息地由许多部分共同作用。 当你阅读时，你会明白为什么这一页上的图片不可能是真实的。

The Building Blocks of Habitats Earth has many habitats. To know why, let's learn about the building blocks of habitats. The first building block is latitude. Latitude measures how far a place is from the equator. The Sun warms latitudes near the equator more. The Sun warms latitudes near the North Pole and South Pole less.

地球上有许多栖息地。 要知道为什么，让我们来了解一下栖息地的组成部分。 第一个基石是纬度。 纬度测量一个地方离赤道有多远。 太阳使赤道附近的纬度地区变暖更多。 太阳使北极和南极附近的纬度变暖的程度较低。

The second building block of habitats is elevation. Elevation is how high or low a place is. The Sun warms low places more than high places Why is that? The air around Earth is the atmosphere. It is like a blanket of air. The blanket is thick close to the ground, so it holds in more heat. The blanket is thin at high elevations, so it holds in less heat.

栖息地的第二个组成部分是海拔。 海拔高度是指一个地方的高度或高度。 太阳使低处比高处温暖得多，这是为什么? 地球周围的空气是大气。 它就像一张空气毯。 毯子很厚，靠近地面，所以它能吸收更多的热量。 毯子在高海拔地区很薄，所以它能吸收较少的热量。

Climate is half of the third building block of habitats. Climate is weather over many, many years. Temperature, wind, and water in the air are all part of climate. Different places on Earth have different climates. Wowser! The North Pole never gets dark in the middle of summer (in June). The Sun never rises in the middle of winter (in December). At the South Pole, winter (in June) is completely dark. Summer in December is light but not bright.

气候是栖息地第三个组成部分的一半。 气候是许多年的天气。 温度、风和空气中的水都是气候的组成部分。 地球上不同的地方有不同的气候。 老古板!北极在仲夏(6月)是永远不会变黑的。 太阳在隆冬(12月)从不升起。 在南极，冬天(六月)是完全黑暗的。 十二月的夏天很轻但不明亮。

The other half of this habitat block is water and land. Almost three- fourths of Earth's surface is water. Most of the water is in oceans. Other water is in lakes, streams, and underground. Earth's land is different from place to place.

这个栖息地的另一半是水和陆地。 地球表面几乎四分之三是水。 大部分水都在海洋里。 其他的水在湖泊、溪流和地下。 地球上的土地因地而异。