How is the Earth's magnetic field generated?

Eventually the star stops accreting matter, leaving the disk in orbit around it. The leftover gas and dust inside that protoplanetary disk become the ... Blue whales are the largest animals ever to live on our planet. They feed almost exclusively on krill, straining huge volumes of ocean water through their ... Mar 16, 2025 ... Within Yellowstone's 2.2 million acres, visitors have unparalleled opportunities to observe wildlife in an intact ecosystem, explore ... Earth itself has an average density of only 5.4 x 103 kg/m3. That means a white dwarf is 200,000 times as dense. This makes white dwarfs one of the densest ... What do a human, a rose, and a bacterium have in common? Each of these things — along with every other organism on Earth — contains the molecular ... An earthquake is a sudden, rapid shaking of the ground caused by the shifting of rocks deep underneath the earth's surface. ... If you are inside, stay and do not ... Within a 30 km radius of the power plant, the total population was between 115,000 and 135,000 at the time of the accident. RBMK 1000 reactor - the model used ... children to guess what might be inside a box or bag, place new materials in ... ESSENTIAL QUESTIONS: What structures, processes, and cycles make up the earth? An earthquake is what happens when two blocks of the earth suddenly slip past one another. The surface where they slip is called the fault or fault plane. Episodes · 1. React. Through the eyes of a boxer, a first responder and a man with a bionic hand, see how the brain and its vast nervous system turn information ...