Question

Choose all the answers that apply. The continents _____. were once connected have always been in the same location are slowly drifting have stopped moving are made mostly of basalt

Answer 1

Were once connected, and Are slowly drifting

Step-by-step explanation:

It's called the continental drift, At first, Wegener's theory was dismissed. No one believed that the continents moved. During the 1920s, another scientist named Arthur Holmes suggested that the magma in the earth's mantle moved through convection currents. As hot magma rose toward the crust, it cooled and then sank back down. The cycle continued over and over, causing motion that was powerful enough to move the continents. Like Wegener's theory, Holmes' idea was not accepted by the scientific community. Forty years later, geologists compared mineral and fossil samples from Africa to those in South America. The samples matched perfectly. Today, the theory of continental drift is supported by a large amount of data and evidence. The continents as a whole was once called Pangaea.

Answer 2

Answer: the correct options are

- were once connected

- are slowly drifting

Explanation: The continent is the main land mass of the earth which includes the following:

- Asia, Africa, Europe, Australia, North America, South America, and Antarctica.

These continents were once connected forming a supercontinent called PANGAEA

during the late palaeozoic and early mesozoic eras, millions of years ago.

Alfred Wegener, who is a German meteorologist, in 1912 came up with a hypothesis that the continents are slowly drifting the earth. He called the movement continental drift.

The continents rest on massive slabs of rock called tectonic plates. The plates are always moving and interacting in a process called plate tectonics. In recent studies, through the science of plate tectonics, we where able to understand the mechanism through which continental drift occurs. The mechanism includes:

- processes of seafloor spreading,

- rift valley formation, and

- subduction (where heavier tectonic plates sink beneath lighter ones).