1. Poll
120 seconds
Lions and cheetahs prey on wildebeests that graze in the grasslands of the African savanna. What likely effect would increased rainfall over several rainy seasons have on the populations of wildebeests, lions, and cheetahs?
- The wildebeest population would increase, and the lion and cheetah populations would decrease.
- The wildebeest population would decrease, and the lion and cheetah populations would increase.
- All three populations would increase.
- All three populations would decrease.
2. Poll
120 seconds
Some areas of an ocean are known as dead zones. These zones form when excess organic material decomposes. This increased decomposition uses up the oxygen from the water. Which human activity is most affected by the increasing number of dead zones in the ocean?
- Offshore oil drilling, because water in dead zones is toxic
- Commercial fishing, because fish cannot survive without oxygen
- Commercial shipping, because dead zones change the course of ocean currents
- Sand mining, because oxygen is not available to form the sands on ocean beaches
Made with ❤️ from Norway