Complex sentence: Concern Worldwide currently works in 30 of the poorest countries in the world, is a member of the Disasters Emergency Committee and is also known for the Global Hunger Index and the India State Hunger Index.
Split into simpler sentences: Concern Worldwide currently works in 30 of the poorest countries in the world, and is a member of the Disasters Emergency Committee. Concern is also known for the Global Hunger Index and the India State Hunger Index.