Answer:
The solution slowly descends into the cave and deposits the dissolved calcium carbonate, sometimes including impurities of iron and other minerals. On reaching the cave, the water droplets fall to the floor, leaving behind a tiny deposit of calcite crystal.
Explanation:
The correct answer is fossil: for example many of the diosaur bones that we find are fossils.
The other options describe concepts much much bigger than a fossil: landform and landmass have a very similar meaning to a "continent", for example a landform can be in island or a mountain - much bigger than a fossil
Answer:
The answer is A
Explanation:
Seafloor spreading causes continental plates such as the North American Plate and the Eurasian plate to move apart in the mid-Atlantic ridge. However, the movement of the plate can cause the plates to move towards others. Eventually, when the continental plates move together they form supercontinents. The convection currents in the mantle are the driving force under the tectonic plates.
Answer:
Option (C)
Explanation:
Coquina is usually defined as a sedimentary limestone rock that is found to be present in the freshwater zones and in the coastal areas. This rock is made up of broken shells that are smaller in size. The rocks can be easily broken down by the constant flowing of sea waves.
This rock is commonly formed in the same way as the other sedimentary rocks, i.e. it is formed by the deposition of sediments carrying these organic remains and eventually undergoes the process of compaction and lithification on the seafloor.
Thus, the correct answer is option (C).
The answer to your question is C. 1 year :)