Answer:
They found evidence of an impact crater in Mexico
Explanation:
The K-Pg boundary is the boundary that separates two periods, but also two eras. The two periods that are separated by this boundary are the Cretaceous and the Tertiary, while the two eras are the Mesozoic and the Cenozoic. The boundary is marked by a mass extinction, and the scientists started to hypothesize as to why it happened. There were numerous different theories, but a clue in Mexico, or rather right next to the Yucatan Peninsula, shed new light on it. The scientists found an impact crater, formed either by a large asteroid or a comet. Such an impact would have easily caused sudden and drastic changes on the Earth, killing of the majority of the species. This impact released such a big amount of energy that it killed everything in the surrounding area in seconds. On top of that, it caused an extremely hot wave of air across the whole planet, killing many more organisms. It managed to trigger most of the volcanoes to erupt, as well as the earthquakes, causing also very large tsunamis. The sunlight got blocked for quite some time from all the aerosols in the atmosphere as well. This resulted in a mass extinction of the dominant species, like the dinosaurs, but it opened up the terrain for the evolution of the others, like the mammals.
GPS, Glonass are the most popular
Answer:
They cause climate change by trapping heat, and they also contribute to respiratory disease from smog and air pollution.
Explanation:
Extreme weather, food supply disruptions, and increased wildfires are other effects of climate change caused by greenhouse gases.
Because Rhino is one of the oldest animals in the world. Rhinos are usually found in Africa and Asia. The Pratama rhino lives by the name of the wolly rhino, which lived on earth about 50 million years ago.
Explanation:
Facts you should know about rhinos:
1. Rhinoceros Endangered animals
2. Has a unique physical character
3. Charming horns
Learn More:
- Rhino is one of the oldest animals in the world brainly.com/question/14020789
- Rhino brainly.com/question/1128526
Details:
Grade: Middle School
Subject: Geography
Keyword: Rhino