What device has made car emissions much cleaner? automatic transmission

better wheels

tail pipes

catalytic converters

Can you reduce your impairment by drinking coffee or cold showers? true or false?

In all living cells dna controls cellular activities by

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.