19 across 7 letters. In mathematics a proposition or statement that is demonstrated. 20 down 2 & 3 letters. In which effects of light and the illusion of movement is used rather than pictures. 25 down...
3 down 5 letters.
Sharp ridge on the side of a mountain.
5 down 4 letters.
Curved line used in musical notation
45 down 5 letters.
Shade tolerant plant grown for its foliage.
7 down 4&4 letters. 2 words. A measure of the time taken for radioactivity of a given sample to fall by 50 percent. 27 Down 10 letters. Substances derived from petrochemicals some used for sweetening....
9 across 9 letters in astronomy anither name for a black hole,neutron star. 24 across 5 &4 letters.2 words. In radio and TV overlapping change of sound. 19 down 6 letters. Iranian Sect practising...