Add spaces: steering,wheels,andpedalswithball-bearing

Answer: steering, wheels, and pedals with ball-bearing

Add spaces: Bymeansofsuchcomplementaryevidence,lightiscastuponhereonsomehithertohiddenchaptersofourcommonculturalprehistory:Outofthewell-knownbiblicalstoryanuntraditionalandstrongerEgyptianbackgroundisbroughttolight.

Answer: By means of such complementary evidence, light is cast upon here on some hitherto hidden chapters of our common cultural prehistory: Out of the well-known biblical story an untraditional and stronger Egyptian background is brought to light.

Add spaces: LIVUL2Qualityoflifebymeaningful,score,highesteducationcompleted,regionandsex(2015)

Answer:
LIVUL2 Quality of life by meaningful, score, highest education completed, region and sex (2015)