1. What kind of gas is unique to the planet Earth?
2. What kind of gas is common to all
living organisms?
3. Differentiate a high-density wind from a
low-density wind and explain how air
flows
4. Differentiate the local winds: Land and
sea breeze. Give at least 2
explanations.​

What is the most stable monatomic ion formed from nitrogen

If a 12-v battery is connected to a circuit that has a current of 3.0 a, what is the total resistance in the circuit? 36 ohms 4 ohms 0.25 ohms

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