Help with Lines after Loft.

To make this body I used several lofts and then combined them all and changed the material to be one thing, however the lines between the lofts still appear, which would not be so much of a problem but I do not want them to appear in my render, when I render this “mountain” it is all segmented, with this striped pattern, how do I solve this?

https://preview.redd.it/s38fdm8nucde1.png?width=932&format=png&auto=webp&s=93d7c690bbeb7b8a481ecfdd63851cef1c212bc2

https://preview.redd.it/zxytx2anucde1.png?width=996&format=png&auto=webp&s=7dc6b60da4482b62e7eddc1c5d25e49dec6525f9

https://preview.redd.it/vaaiu49nucde1.png?width=923&format=png&auto=webp&s=474b35acb9678b478d72686ade57cfe3422248c3

https://preview.redd.it/gxz9km8nucde1.png?width=918&format=png&auto=webp&s=cb0c9bff6cdeef215d986edae431d411c5ddacd2