Question

在地壳里含量前五位的元素_____________,其中与生物关系密切的_______三种元素含含量较少

Answer 1

氧
O
46.60%
47.40%
46%
46.71%
46.1%
100,000,000
吨
硅
Si
27.72%
27.71%
27%
27.69%
28.2%
3,880,000
吨
铝
Al
8.13%
8.20%
8.2%
8.07%
8.23%
15,000,000
吨
铁
Fe
5.00%
4.10%
6.3%
5.05%
5.63%
716,000,000
吨
钙
Ca
3.63%
4.10%
5.0%
3.65%
4.15%
112,000,000
吨
(CaO)
钠
Na
2.83%
2.30%
2.30%
2.75%
2.36%
200,000
吨
钾
K
2.59%
2.10%
1.50%
2.58%
2.09%
200
吨
镁
Mg
2.09%
2.30%
2.90%
2.08%
2.33%
350,000
吨
钛
Ti
0.44%
0.56%
0.66%
0.62%
0.56%
99,000
吨
氢
H
0.14%
N/A
0.15%
0.14%
0.14%
磷
P
0.12%
1000
ppm
1000
ppm
1300
ppm
1050
ppm
153,000,000
吨
锰
Mn
0.10%
950
ppm
1100
ppm
900
ppm
950
ppm
6,220,000
吨
氟
F
0.08%
950
ppm
540
ppm
290
ppm
585
ppm
钡
Ba
500
ppm
340
ppm
500
ppm
425
ppm
6,000,000
吨
碳
C
0.03%
480
ppm
(0.048%)