True. The crust of the Earth has some permanent magnetization, and the Earth's core generates its own magnetic field, sustaining the main part of the field we measure at the surface. So we could say that the Earth is, therefore, a "magnet."
Answer:
Ecosystem health indicators are measures which help us to understand where action should be taken to restore ecosystem health and associated benefits.
Explanation:
Microtubules are tiny, hollow, bead-like tubular structures that help cells maintain their shape. Along with microfilaments and intermediate filaments, they form the cytoskeleton of the cell, as well as participate in a variety of motor functions for the cell.
Answer:
Global sea levels may rise due to melting of glaciers and polar ice, and thermal expansion of warmer water.
Rapid sea level rise will likely be the greatest climate change challenge to mangrove ecosystems, which require stable sea levels for long-term survival.