After we are born, we inhale air into our lungs and that air diffuses into capillaries, where it comes into contact with the blood. within red blood cells, a protein called hemoglobin (hb) reacts with oxygen according to the chemical equation:

Put these processes of the water cycle in the correct order, starting at the point where the water is in the lake: 1. water evaporates into the atmosphere 2. rain, snow, or other precipitation falls 3. water collects into larger bodies of water 4. water vapor condenses into liquid water

What is the correct term for living the most sustainable life you can within your current circumstances?

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line