Activities in which students can learn to determine the history of a tree from the growth pattern recorded in the rings of a cross-section of a tree are described. Activities include background information, obj
D Do you know tree rings (年轮) can tell us something: what the weather was like even hundreds of years ago? A tree will grow well in a climate with lots of sunlight and rainfall. In other words, little sunlight or rainfall will limit the growth of a tree. We can study the tree ...
[A] To analyze the composition of different trees.[B] To look into the pattern of solar wind activity.[C] To find out the origin of carbon-14 on earth. 相关知识点: 试题来源: 解析 [B] [A] 考核的是树木的组成分析,但研究年轮的主要目的不在此,而是环境因素对年轮的影响,因此排除。 [B] ...
Trace metals in tree rings: what do they tell us? In: MARKERT, B.; FRIESE, K. Trace Elements: Their distribution and effects in the environment. New York: Elsevier, 2000. chap. 13, p. 375-385.Hagemeyer, J. 2000. Trace metals in tree rings: what do they tell us? In: Markert,...
A tree will grow well in a climate (气候) with lots of sun shines and rainfall (雨量) . And little sunshine or rain fall will limit (限制) the growth of a tree. We can see the change of climate by studying the tree rings. For example to find out the weather of ten years ago co...
RRPP and the Multi-Spanning Tree Protocol (MSTP) cannot be enabled on the same interface. Before creating an RRPP ring, disable STP on the interfaces to be added to the RRPP ring. The RRPP convergence speed depends on the number of domains and rings. The convergence speed is high when the...
What is the purpose of the scientists in studying tree rings?相关知识点: 试题来源: 解析 To understand past climate and environmental conditions. 科学家通过研究树木年轮(年轮的宽度、密度等特征)来推断历史气候和环境变化。每年树木生长的年轮会因温度、降水、光照等环境因素产生差异:温暖湿润年份年轮较宽,...
A Tree rings(年轮) can tell us what the weather was like, sometimes even hundreds of years ago. A tree grows well in a climate(天气) with lots of sunshine and rainfall. Little sunshine or rainfall will limit(限制) the growth of a tree. We can see the change of climate by studying ...
A tree will grow well in a climate with lots of sunshine and rainfall.And little sunshine or rainfall will limit(限制)the growth of climate by studying the tree rings.For example, to find out the weather of ten years ago, count the rings of a tree from the outside to the inside.If ...
Everyone may know tree rings tell us how old a tree is. But do you know they can tell us what the weather was like? A tree grows well in a climate (气候) with lots of sunlight and rainfall (雨量). And little sunshine or rainfall limits (限制) the growth of a tree. We can see...