Sunglasses allow some light to pass through. Then that means sunglasses are . A. transparent
B. translucent
C. opaque
D. insulators

 B Translucent

Explanation: Sunglasses allow some light to pass through which allows you to see. The rest of the light is either absorbed or reflected off the surface of the glasses.

space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).