Select the correct response from the list of options.
 
How does size differ between terrestrial and gas giant planets?
 
Inner planets are small and rocky, while outer planets are large, light, and mostly gaseous.
Answer variants:
Reduces fish population
Hydrogen and helium
Jupiter
Mercury
Sustainable development practices
 
1. Which planet is the smallest in the Solar System?
2. Which is the largest planet?
3. What main material makes up gas giants?