[Q]: Trading volume was incredibly light at 500.22 million shares , below an already thin 611.45 million exchanged at the same point Thursday .

Trading volume was extremely light at 1.05 billion shares , below an already thin 1.19 billion on Tuesday .
****
[A]: yes

[Q]: It said the damage to the wing provided a pathway for hot gasses to penetrate the ship 's thermal armor during Columbia 's ill-fated reentry .

The document says the damage to the wing provided a pathway for hot gases to penetrate Columbia 's thermal armour during its fatal re-entry .
****
[A]: yes

[Q]: Washington , however , said more was needed to prevent complaints being filed in the first place .

But the US insisted it wanted more done to prevent complaints being filed in the first place , preferably by repealing the entire law .
****
[A]: no

[Q]: Israel 's defense minister on Sunday raised the specter of an Israeli invasion in the Gaza Strip , where Palestinian militants already face a deadly air campaign .

Shaul Mofaz , Israel 's Defence Minister , raised the prospect of a ground offensive into the Gaza Strip , in addition to a growing air campaign to assassinate Hamas militants .
****
[A]:
yes