Classify the following materials as rock or mineral

You did not provide us with the materials you need to be classified, but I hope this helps:

A mineral is a solid formation that occurs naturally in the earth while a rock is a solid combination of more than one mineral formations which is also occurring naturally. A mineral has a unique chemical composition and is necessarily defined by its crystalline structure and shape.

Examples of rocks include: sandstone, basalt, limestone, and slate

Examples of minerals include: cobalt, zinc, lithium, and gold

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

✿   this landform has a high elevation and a high relief

✿   this landform is a mountain