读图,回答下列问题。 |
(1)由图可以看出,近150年来大气中二氧化碳含量的变化趋势是什么? ________________________________________________________________________________________ ________________________________________________________________________________________ |
(2)大气中二氧化碳升高的原因有哪些? ________________________________________________________________________________________ ________________________________________________________________________________________ |
(3)我们应采取哪些措施来控制大气中二氧化碳的含量? ________________________________________________________________________________________ ________________________________________________________________________________________ |
(4)近150年来,全球气温变化趋势如何?与二氧化碳含量有何关系? ________________________________________________________________________________________ ________________________________________________________________________________________ |
(5)近百年来,全球海平面变化趋势如何?为什么? ________________________________________________________________________________________ ________________________________________________________________________________________ |