She said they were good choices but more research was needed into the appropriate mix of bio-fuel and convention oil to avoid ozone pollution If we are to switch to bio-fuels,we must conduct more studies, Ms. Savitri said
She said they were good choices but more research was needed into the appropriate mix of bio-fuel and convention oil to avoid ozone pollution If we are to switch to bio-fuels,we must conduct more studies, Ms. Savitri said