Help with trees' rendering

So I’m making a game for a school project using free Unity assets and I’m having this problem with the trees unloading/unrendering while still in the camera view like in the right corner.
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I’d like for this to happen outside of the camera’s view but I’ve been unable to do so since I don’t understand a lot of Unity’s rendering ways…

near clipping plane is the variable on the camera component that controls at what distance the camera starts clipping through the object based on its distance from it, put simply just decrease the clipping plane variable on the camera and it will not cut through your objcts.