ELPAC Practice Flashcard: Listening

Front

What is the main reason apples change color?

Back

Apples change color due to the breakdown of chlorophyll and the production of other pigments as they ripen.

Front

What chemical reaction causes old tools to rust?

Back

Old tools rust due to the reaction between oxygen and iron, which forms iron oxide.

Front

How can pollution be reduced according to the boy's perspective?

Back

Pollution can be reduced if fewer people drive cars, leading to less vehicle emissions.

Front

What problem does the boy face related to walking his dog?

Back

The boy mentions walking his dog to introduce a problem he has faced, possibly related to time management or responsibility.

Front

Why is the skin of an apple important?

Back

The skin of an apple is important because it protects the inside of the apple from exposure to air and potential spoilage.

Front

What are the main components of an apple's structure?

Back

The main components of an apple's structure include the skin, flesh, core, and seeds.

Front

What role does chlorophyll play in apples?

Back

Chlorophyll is the pigment responsible for the green color in apples and is essential for photosynthesis.

Front

What environmental impact do cars have?

Back

Cars contribute to air pollution and greenhouse gas emissions, impacting climate change and public health.

Front

What is the significance of introducing problems in discussions?

Back

Introducing problems in discussions helps to engage listeners and encourages critical thinking about solutions.

Front

What are the benefits of eating apples?

Back

Eating apples provides health benefits such as dietary fiber, vitamins, and antioxidants.