When the magnetic field of Earth is reversed,
A) Earth flips over in its orbit.
B) Earth's rotation is also reversed.
C) newly formed mineral grains on the ocean floor are magnetized according to the new orientation of the magnetic field.
Question 2
Detailed mapping of the ocean floors revealed
A) huge mountain ranges beneath the oceans.
B) deep trenches near some of the continents.
C) that the oceans are equally deep at all locations.
D) huge mountain ranges on the ocean floor, and deep trenches near some of the continents.
Changes in Earth's atmospheric carbon dioxide levels over geological time.
The monthly changes of angle between the direction of illumination by the Sun and viewing from Earth
Tides on Earth
The first step in field recovery involves surveying the site, sometimes with special equipment.
Hall-effect switches use metallic shutters to shunt magnetic lines of force away from a silicon ...
Earth 240 Million Years Ago