首页
登录
职称英语
How to Get Preserved as a Fossil (66) Unfortunately the
How to Get Preserved as a Fossil (66) Unfortunately the
游客
2025-05-03
6
管理
问题
How to Get Preserved as a Fossil
(66)
Unfortunately the changes of any animal become a fossil are not very great, and
(67)
the chances of a fossil then being discovered many thousand of years later are even less.
(68)
It is not surprising that all the millions of animals that have lived in the past,
(69)
we actually have fossils of only very few
.
(70)
There are several ways into which animals and plants may become fossilized.
(71)
First, it is essential that the remains are buried, as though dead animals and plants are quickly destroyed.
(72)
If they remain exposed the air.
Plants rot, while insects and hyenas eat the flesh and bones of animals. (73)
Finally, the few remaining bones soon disintegrate the hot sun and pouring rain.
If buried in suitable conditions, however, animal and plant remains will be preserved. (74)
The same chemicals change sand and silt into hard rock will also enter the animal and plant remains and make them hard too.
(75)
When this happens, we say that they become fossilized.
[br]
选项
答案
become→becoming of any animal
解析
转载请注明原文地址:https://tihaiku.com/zcyy/4060110.html
相关试题推荐
HowtoGetPreservedasaFossil(66)Unfortunatelythe
HowtoGetPreservedasaFossil(66)Unfortunatelythe
HowtoGetPreservedasaFossil(66)Unfortunatelythe
HowtoGetPreservedasaFossil(66)Unfortunatelythe
HowtoGetPreservedasaFossil(66)Unfortunatelythe
Forscientistswhostudyhumanevolution,fossilremainsprovidetheonlydi
Forscientistswhostudyhumanevolution,fossilremainsprovidetheonlydi
Forscientistswhostudyhumanevolution,fossilremainsprovidetheonlydi
Unfortunatelynotallofusobtainourjust______inthislife.A、demandsB、gains
ManyUnitedStatescompanieshave,unfortunately,madethesearchforlegal
随机试题
Nexttimeyougazeoutside【C1】______acoldwinterdayandthinkhowdead
电力系统中发生故障和不正常运行状态时,都可能在电力系统中引起事故。
图示结构EI=常数,A点右侧截面的弯矩为:
症见胁肋胀痛,胸闷太息,纳食减少,腹胀便溏,肠鸣矢气,可诊为A.肝气郁结 B.
某大豆进口商在5月即将从美囯进口大豆,为了防止价格上涨,2月10日该进口商在CB
A.肾阳虚证 B.阴虚夹湿证 C.湿热下注 D.脾虚证 E.热毒蕴结证患
下列关于尿浊的叙述错误的是A.小便混烛 B.白如泔浆 C.尿时无涩痛不利感
中国人具有浓烈的情怀,但在表达上疏于豪放,一般都比较。 填入横线部分最恰当的
一般而言,按流动性从小到大顺序排列正确的是()。A.公司债券→普通股票→国
中国证监会派出机构按照()原则,对辖区内营业部的设立、变更、终止及日常经营活动进
最新回复
(
0
)