How many coral reefs will be left by the year 2030? A. One third. B. 20 percent. C. 40 percent. D. 60 percent. 相关知识点: 试题来源: 解析 C 答案:C 解析:推理判断题。从倒数第三段最后一句可知,到2030年60%的珊瑚礁会消失,因此只有40%的能够存活下来。反馈 收藏 ...
You arescuba divingalong one of the many coral reefs scattered throughout the equatorial seas, glimpsing the multitude of life that this largest of living structures supports. Your underwater view, however, may be limited. Seventy percent of coral reefs may be gone in less than 40 years if ...
How many red-ruffed lemurs are left in the wild? How many species of orangutans are there in the world? How many species of primates are there? How many species of leopards are there? How many babies do marmosets have? How many species of gorillas are there?
How many sand tiger sharks are left in the world? Do tiger sharks live in coral reefs? How long can a Komodo dragon live? What ocean zone do tiger sharks live in? How long have whale sharks been around? What do sand tiger sharks eat?
Also, many parents think their little daughter looks cute in pink. Sue Palmer says that girls at this age cannot make proper decisions by themselves, but the pink can affect (影响) the choices and the decisions they will make in the future.Some parents are worried too—for example, Vanessa...
Climate change is bleaching and killing corals, but researchers from Michigan State and the University of Hawaii are investigating how some can stand up to a warming world. Coral reefs are beautiful and diverse ecosystems that power the economies of many coastal communities. The...
At school, there are so many people who need help, so I have the ___ and the awareness to spread kindness like the kids by returning used ___ dishes to the kitchen, picking up litter, and trying to make students feel seen through ___ greetings. Besides, I also have the chance to...
Many jellyfish have four to eight tentacles hanging from their bell, but some species have hundreds. How many types of jellyfish are there? Studies show that there are around 2,000 types of documented jellyfish around the world. However, as is the case with most marine species, itâ€...
and the darkroom with too many sinks?under the color-balanced lights, she found a note,?tacked to the wall with a thumb-tack, left over from a time before towers,?from the time before babies.?And the note said: A guy sure loves the girl who works in the darkroom.?It was a year ...
Global climate change is rapidly altering disturbance regimes in many ecosystems including coral reefs, yet the long-term impacts of these changes on ecosystem structure and function are difficult to predict. A major ecosystem service provided by coral reefs is the provisioning of physical habitat for...