Calcula la velocidad de un autobús que recorre 450 kilómetros en 300 minutos

Diamond will scratch quartz. true or false

Which accounts for an increase in the temperature of a gas that is kept a constant volume

Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.