There are two continents with an ocean between them. Today the continents have very different plants and animals on them. However, a geologist found fossils of the same type of organism on both continents. Millions of years ago when this type of organism was alive, we know it lived in only one place. The geologist is using fossils as evidence to argue that the two contients used to be touching. How could the continents have gotten so far apart, and how long did it take for this to happen?

A. Through geologic forces leading to continental drift.

B. It can take up to millions of years.

Explanation:

A. Continents rest on tectonic plates (a large slabs of rock). The plates are usually moving and interacting with one another. Seafloor spreading zones and giant rift valleys are the sites where tectonic activity are done.

However, in the process of seafloor spreading, molten rock emerges from within the Earth and produces an oceanic crust (a new seafloor) to the edges of the old one. Seafloor spreading occurs along giant underwater mountain ranges (also referred to as mid-ocean ridges).

Then, as the seafloor grows wider, the continents on opposite sides of the ridge move away from each other over time to experience a define continental drift.

B. The seafloor spreading rates is as low as 2.5 centimeters per year and take up to millions of years to see a well defined drift.

answer; the above statement is (true);

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !