Answer:
Corals reef is a underwater ecosystem that builds on limestone beds, CaCo3
Explanation:
- They have exoskeletons made up of limestones and its possible that the corals might have moved offshore with changes in the sea levels as, he finds an abundance of large clam fossils, that produce within the interlocking of limestone section.
- Since the clam is made up primarily of coral fragments its possible that the corals might have buried under the landmass when the upliftment was completed.
- The skeletal remains of the coral polyps that are now stratified in the rocks are suggestive of reef formation around the landmass earlier period and these were mostly found in tropical oceans.
- Thus as he moves away and sees limestones with shales, which has clam fossils he had seen previously.
Answer:
wearing away is the answer
Answer:
D) use of the Rio de la Plata
Explanation:
Uraguay and Paraguay are two nations located in South America, and they have lot of similarities between them. One big difference though is that Uruguay is coming out on ocean waters, while Paraguay is landlocked. Uruguay uses the Rio de la Plata as the most important place for its ports, thus for trading globally, while Paraguay is not able to do so as it doesn't have access to the Rio de la Plata.
