It rolls without wheels; lands without taking off. by its many faces, it determines the fate of many. what is it?

Fist of all, you need to learn about cad and architecture or basic engineering or architecture drawing in order to prorperly use and utilize cad programs.it's as abbreviated computer-aided-drafting. it will the user acquire skills faster since it's aided by technology

What is the picture?

Diamond or a rectangle or a triangle

The correct answer is a.the castrati were classical singers with very high voice equivalent to that of a soprano, mezzo-soprano or contralto. this effect of high voice was produced by castration before puberty or an endocrinological condition. the castrati first started signing at the church but then they also sang at the opera. they did not only sang in italy but in many churches in europe. finally, they were singing male and female roles as well.