Forum:Questions on Elemental Heroes - Zero and Knight

1) Elemental Hero Neos Knight's text states that "when this card battles, any Battle Damage to your opponent becomes 0". Does this mean, however, that it will still be able to inflict damage to your opponent's LP by a direct attack?

2) Elemental Hero Absolute's Zero's effect activates only when it leaves the field. Will my opponent still be able to chain Starlight Road to it's effect, if the conditions are met, even thought Elemental Hero Absolute Zero is already destroyed by battle, and it's effect activates during the Damage Step?

3) Also, if Elemental Hero Absolute Zero is destroyed by something like Bottomless Trap Hole, and it's effect activates, with my opponent chaining Starlight Road to it, will he or she be able to summon Stardust Dragon? Because if i remember correctly, Rulings state that the negated card must be destroyed by Starlight Road in order for the player to opt for the summoning of Stardust Dragon. But, in this case, Elemental Hero Absolute Zero is already destroyed by Bottomless Trap Hole.