Based on the clue 'about 45 billion years old its the closest g2 type...', what is the answer?

Based on the clue 'about 400 bc the persians began knitting these so...', what is the answer? What is associated with: about 4000 cherokee indians died on the trail of these in the late 1830s? What is associated with: about 4000 years ago the mesopotamians reinvented the wheel using these to make it lighter? What is associated with: about 40000 men were left in this french port after the last evacuation ship left june 4 1940? Based on the clue 'about 5 5 in real life he towers nearly 17 feet ab...', what is the answer? Based on the clue 'about 50 of the togolese practice native african r...', what is the answer? Based on the clue 'about 50 of the us orange crop is of this variety ...', what is the answer? Based on the clue 'about 500 bc this chinese said what you do not wan...', what is the answer?