Answer:
See explanation.
Step-by-step explanation:
Each sentence is posed in a way that makes sense, writing the verbs at the correct time.
At the same time, the sentences are given in interrogative form and are written affirmatively.
1. Es probable que haya muchas vacas en los campos de la región
It is likely that there are many cows in the fields of the region
2. Es posible que el agua de esos ríos esté contaminada
It is possible that the water in these rivers is contaminated
3. Quizás ese sendero nos lleve al lago
Maybe that path takes us to the lake
4. Es imposible que el gobierno proteja todos los peces del océano
It is impossible for the government to protect all the fish in the ocean
5. Es improbable que la población reduzca el uso de envases de plástico
The population is unlikely to reduce the use of plastic containers
6. Tal vez el desierto sea un lugar mejor para visitar en invierno
Maybe the desert is a better place to visit in winter
Hope this helps!