The competition for food among primary consumers increased. Nutrients cycled through the system at a faster rate. Less solar radiation was able to enter the system. Secondary consumers became extinct.
I gave my students this multiple choice question: One hot summer, a grassland experienced a drought. Which most likely happened in the ecosystem during this time?

Only one answer is correct among these 4 choices:
- The competition for food among primary consumers increased.
- Nutrients cycled through the system at a faster rate.
- Less solar radiation was able to enter the system.
- Secondary consumers became extinct.

Could you tell me which one is correct?

The competition for food among primary consumers increased.