Fossils.
Early in the 20th century, Alfred Wegener, primarily, established the continental drift theory. According to Wegener, continents are mobile on the surface of the Earth and were previously connected to form a single supercontinent. Scientists did not think that the continents could migrate when Wegener was alive.
In rocks that are the same age but on continents that are currently far apart, ancient fossils of the same species of extinct plants and animals can be found. Wegener claimed that the species had coexisted, but that once they died and become petrified, the lands had separated. According to his theory, the creatures couldn't have crossed the seas.
1. Glossopteris seed fern fossils were too heavy for the wind to carry them that far.
2. Mesosaurus was a reptile that could swim, although it could only do it in freshwater.
3. The terrestrial reptiles Cynognathus and Lystrosaurus were incapable of swimming.
Learn more about continental drift theory here:
brainly.com/question/1986260
#SPJ4
The answer is C “volcanic activity was more common in the past than it is today
Answer:
sandy loam
Explanation:
For example, a soil with 60 percent sand, 10 percent silt, and 30 percent clay would be classified as a sandy loam
Climate change has multiple effects on people and animals.
Every American is vulnerable to climate change impacts on their health at some point in their lives.
Climate change can have a range of impacts on physical, mental, and community health.
A warmer climate is expected to increase the risk of illnesses and death from extreme heat and poor air quality.
Climate change will likely increase the frequency and strength of extreme events (such as floods, droughts, and storms) that threaten human health and safety.
Climate changes may expose more people to diseases.
Some groups of people (e.g., the very young and the very old) are especially vulnerable to health impacts.
Six different volcanoes joined together
