(Bloomberg) — Google’s technologies offer advertisers and publishers a safe ecosystem of tools to transact amid the intensely competitive world of online advertising, the company argued in federal court this week to counter Justice Department allegations that it is an illegal monopoly.Most Read from BloombergVanderbilt Leases Struggling NYC Seminary for Campus ExpansionClimate Migrants Stand to Overwhelm World’s MegacitiesNJ Transit, Amtrak Trains Delayed After Derailment Near NYCWhere Cargo Bi