XA 030 Falling Satellites, Trees, & Green Hydrogen

Talking Points
1. Green Hydrogen
2. Starlink Satellites Falling
3. 12-Year-Old in India Plants More Trees Than Most Adults

Quick Practice
Challenge your knowledge of comparative and superlative forms.

Focus Phrase
Second to none

New Solar Reactor Makes Green Hydrogen More Efficient

A new prototype reactor has successfully created hydrogen fuel using only sunlight, water, and mirrors. It’s more efficient than previous versions and could lead to cleaner, cheaper hydrogen production for everything from buses to factories.

Talking Points: Do you think solar-powered hydrogen will become more common in the future?

I think it’s going to become more popular because this method is more efficient and doesn’t rely on fossil fuels.

Language Tip: We use comparatives (like more efficient, cleaner) to compare two things. We use superlatives (like the most advanced, the cleanest) to show the top of a group. For example:

• This reactor is more efficient than older designs.

• It could become the most sustainable way to make hydrogen.