Which of these has a core made of ice, dust, and rock? a) asteroids b) comets c) meteors d) stars

What is the speed of a vehicle that travels 20 meters in 5 second

The pacific islands that lie along tectonic plates may have volcanic activity are uninhabited may not have agricultural economies are located in the tasman sea

What border separates sonora and chihuahua national border state border physical boundary natural boundary