Rearrange the sentences to make meaningful sentences.

What exactly/ the/ is/ air pollution/ of/ influence/ on human beings?

The cheetah is the fastest runner of all living creatures.

The cheetah is a faster runner on land.

No other land animal runs as fast as the cheetah.

No other animal runs as quick as the cheetah.

If the local government takes no action, pollution in the river will improve.

Pollution in the river will get worse unless the local government acts immediately.

Unless the local government takes immediate action, pollution in the river will not get worse.

Pollution in the river will not get better if the local government takes immediate action.

Generally, tigers are the largest mammals.

Tigers are generally not as big and heavy as lions.

Lions are generally not as big and heavy as tigers.

Lions and tigers are generally big and heavy.

Unless the environment is protected, many wild animals will suffer.

If we protect the environment, many wild animals will suffer.

If we don't protect the environment, many wild animals will survive.

Unless the environment is protected, many wild animals will survive.

Unless we stop illegal hunting, many animal species will disappear.

If we stop illegal hunting, many animal species will disappear.

If illegal hunting is stopped, many animal species will disappear.

Unless we continue illegal hunting, many animal species will disappear.

Like all mammals, dolphins cannot breathe easily underwater.

Dolphins, similar to all mammals, are not able to breathe underwater.

Similar to mammals and fish, dolphins cannot hold their breath underwater.

Dolphins are like all mammals that cannot breathe underwater.

If you ignore the safety guidelines, you will have a great experience at the nature reserve.

Provided that you follow the safety guidelines, you will not have a great experience at the nature reserve.

Unless you observe the safety rules, you will have a great experience at the nature reserve.

As long as you observe the safety rules, you will have a great experience at the nature reserve.