# PTE Reading FIB #18: Biological Energy...

Reading: Fill in the Blanks #18 - Level 2 - Feeds Reading

> In the text below some words are missing. Drag word from the box below to the appropriate place in the text. To undo an answer choice, drag the word back to the box below the text.

Photosynthesis in plants is an extraordinary biological process. Through specialized cells containing chlorophyll, plants ____ sunlight into chemical energy, releasing oxygen as a byproduct. This process is the foundation of life on Earth, providing the oxygen we ____ and the basis of the food chain. Plants' ability to harness solar energy is a remarkable adaptation that has enabled a diverse array of life forms to ____ on our planet.

## Answer

Photosynthesis in plants is an extraordinary biological process. Through specialized cells containing chlorophyll, plants **convert** sunlight into chemical energy, releasing oxygen as a byproduct. This process is the foundation of life on Earth, providing the oxygen we **breathe** and the basis of the food chain. Plants' ability to harness solar energy is a remarkable adaptation that has enabled a diverse array of life forms to **thrive** on our planet.

## Explanation

Blank 1 needs a verb that pairs with "into," so plants "convert sunlight into chemical energy." "Provide" and "involve" do not take "into" this way. Blank 3 follows "enabled ... to" and describes life forms doing well, so "thrive" fits. "Withdraw" means pull back, which clashes with "remarkable adaptation."

## Hints

- Look at the words immediately preceding and following each gap to determine the necessary grammatical form.
- Consider the biological context; the passage discusses how plants process energy and support ecosystems.

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