Question

Fossils: Clues to the Past . Everybody knows that dinosaurs once roamed the earth. But how do we know that fact? Dinosaurs lived many millions of years ago and there were no photos taken of them (or any people around to take those photos!) Yet scientists do have proof of dinosaurs, thanks to fossils. A fossil is what is left of (1) ___ animal or (2)___ plant(3) ___ long time after it dies. Fossils are (4)___ buried parts of living things that have been preserved from (5)___ different geological time period. You can think of fossils as the ancestors of today’s animals and plants. To be considered(6) ___ fossil,(7) ___ remains must be at least 10,000 years old.(8) ___ fossil is then just waiting to be found, perhaps by someone like you digging it up from the ground! There are some other, more unusual ways for fossils to form. Scientists have discovered skeletons of animals that died instantly when(9)___ volcano erupted, their bones preserved in the ash. Small bugs or insects caught in tree sap can become fossils when (10)___ sap hardens into a golden material called amber. And animals trapped in sticky natural asphalt or tar can turn into fossils.The most famous example of these fossils can be found right in the middle of California’s biggest city, Los Angeles. Scientists have uncovered more than three million fossils from(11) ___ Ice Age at the La Brea Tar Pits, including saber-toothed cats and mammoths. And scientists there continue to dig up more fossils all the time! Fossils give us(12) ___ wonderful window into our past. Today the science of studying fossils is alive and well. Paleontology (pay-lee-un-tall’-uh-gee) is the study of the history of life on earth, using fossils as the evidence. So if you love dinosaurs and you want to know more about what happened on earth thousands or millions of years ago, maybe someday you can make your living by digging up fossils. 1 ponto Imagem sem legenda A) (1) An / (2) A / (3) A / (4) The / (5) A / (6) A / (7) The / (8) The / (9) A / (10) The / (11) The / (12) A B) (1) A / (2) A / (3) A / (4) The / (5) A / (6) A / (7) An / (8) The / (9) A / (10) An / (11) The / (12) A C) (1) An / (2) A / (3) A / (4) The / (5) A / (6) A / (7) The / (8) The / (9) A / (10) A / (11) The / (12) A D) (1) An / (2) A / (3) The / (4) The / (5) A / (6) A / (7) The / (8) The / (9) A / (10) The / (11) The / (12) A

Answer 1

Resposta:

C

Explicação:

Answer 2

Eu n entendi. Nada

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