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.
East Asia, a Pacific Ocean island group.
The Renaissance Is generally considered to have started in Florence Italy around 1350 to 1400 .
Answer:
A. Mauna Kea/Mauna Loa
Explanation:
Mauna Kea and Mauna Loa are the two peaks of Hawai’i Island. the height of Mauna Kea is 4,206 meters while Mauna Loa has a height of 4,170 meters. Mauna Loa is one of the five volcanoes of Hawai’i which is inactive about 35 years. Mauna Kea is also inactive mountain of Hawai’i and considered the largest mountain of the world if it is measure from base because most of its part are present under water.
Answer:
How do people survive in Antarctica in the winter? Mainly by staying on the station. By not leaving at all during the permanent night, by not travelling for too far and by staying put in a tent or hut if caught out in a blizzard rather than trying to go back to the station.
Explanation:
