Проверить правильность написания предложений:
Our environment influences our health isn't very well (правильно ли употр. "isn't very well).There are different pollutions of soil & air (правльно ли употр. оборот "there are") what make  our natural environment is unhealthy.(правильно ли употр. "what")

Our environment influences our health not very well.There are different pollutions of soil & air  that make our natural environment unhealthy.