Fill in the blanks with an appropriate conjunction or relative pronoun.

Class 9 Conjunctions worksheet

To understand the way sea animals live, scientists need to see the world ……………1………….. (as / like / how) they see it. Scientists already know, for example, ……………2…………. (that / as / why) most deep-sea animals can see only blue light and have blurry vision. ……………3…………… (Though / Even if / If) biologists have learned a lot about the creatures that live in the deep, they still have many questions. For example, scientists want to know ……………4…………….. (how / that / why) bioluminescence is used, how often animals light up, and what creatures of the ocean depths remain to be discovered. To help they are working on a new version of EITS ……………5…………….. (that / who / what) will be placed permanently in a deep-sea canyon off California .

Answers

To understand the way sea animals live, scientists need to see the world as they see it. Scientists already know, for example, that most deep-sea animals can see only blue light and have blurry vision. Though biologists have learned a lot about the creatures that live in the deep, they still have many questions. For example, scientists want to know how bioluminescence is used, how often animals light up, and what creatures of the ocean depths remain to be discovered. To help they are working on a new version of EITS that will be placed permanently in a deep-sea canyon off California