Ocean Basin TopographyThe questions in this activity pertain to Figure11.6. It will be helpful to have aworld map or an atlas for reference.1. Carefully examine the Mid-Atlantic Ridge. At one location label the lineardepression, called a rift valley, that runs down the axis of the ridge.2. Draw a line down the middle (axis) of the Mid-Atlantic Ridge by followingthe rift valleys.3. Is the Mid-Atlantic Ridge best described as a continuous or discontinuousfeature?4. Label the Puerto Rico trench.5. Describe the shape of the Puerto Rico trench.6. Label the continental shelf along the coasts of North and South America.7. Describe the size of the continental shelf that surrounds the state of Florida.8. Circle the area along the east coast of the United States where thecontinental shelf is narrowest.9. Label two abyssal plains.10. Label a seamount.11. Label a submarine canyon.12. On the profile that you constructed in Figure11.4, label the continentalshelf, the continental slope, an abyssal plain, the Mid-Atlantic Ridge, and aseamount