What are chemicals that help break down food into nutrients called?

Which best explains why an iceberg floats?

What is the main reason why some developing countries fear the increase the free trade policies around the world?

1. if you have a gas at 127 degrees c, what is it's absolute temperature (kelvin)? a. 200kb. 300kc. 400kd. 500k2. if you had a gas whose absolute temperature measured 45 k, what is that temperature in celsius? a. -228 cb. -300 cc. 125 cd. 112 c