1. what causes the moon’s shadow to change placement?

2. what must happen for a solar eclipse to occur?

3. why don’t we see lunar eclipses every month?

What must be true for natural selection to heppen

Match the pollutants. 1. a chlorofluorocarbon smoke 2. a biodegradable organophosphate insecticide freon 3. particle pollution paint 4. hazardous waste monoxide 5. carbon is completely burned malathion 6. carbon is incompletely burned dioxide

Give an example of a trait that is controlled by more than one gene.