Divergent boundaries move oceanic plates (plates found in the ocean) away from each other, making magma seep in to fill those cracks, thus spreading the sea floor.
Two human activities that increase the rate of erosion include farming and deforestation. Both make the top cover of the soil loose making it very easy for it to be carried away by agents of erosion such as wind and water. On the other hand, two natural events that can lead to increased <span>erosion rate include floods and earthquake.</span>
Answer:
Radiometric dating
Explanation: Radiometric dating is a precise method of determining the age of archeological artifacts and rocks, it usually makes use of certain radio isotopes of Uranium-235,Rubidiun-87 etc.
Radiometric dating which is also known as radioactive dating is carried out by comparing the naturally occurring radioactive materials of the artifact or rock under study to product of its decay process.
Craters dating is a random process so its reliability can not be guaranteed.
Answer:
1. spheroidal component
2. elliptical galaxy
3. irregular galaxy
4. spiral galaxy
5. disk component
6. cosmology
Explanation:
1. True, the globular cluster M13 belongs to the spherical component or spheroidal component of the milky way galaxy because globular clusters are usually found in galaxies.
2. Since most elliptical galaxy lack new stars they usually have very little cool gas or dust to make.
3. An irregular galaxy is a galaxy that does not have a unique regular shape like other galaxies. Because irregular galaxies are formed when galaxies collide they are more common in the universe 10 billion years ago when the collision is said to have started.
4. Since the milky way galaxy is found in a low-density regions and having a spiral structure that extend from its center into the galactic disc it is called spiral galaxy.
5. The sun is a star, and is located about 28,000 light years from the centre of the milky way galaxy.
Like all the other stars in the milky way galaxy, it is located in the disk component of our galaxy: the milky way galaxy.
6. Indeed, Cosmology involves studying the physical universe, its structure, dynamics, origin and evolution.
This study of the dynamics of the physical universe involves investigating how did distribution of galaxies changes with time.
