They collect ice cores in many locations around Earth to study regional climate variability and compare and differentiate that variability from global climate signals. The samples they collect from the ice, called ice cores, hold a record of what our planet was like hundreds of thousands of years ago.
Answer:
it's 60
Explanation:
Im only gathering this information from the little information you have provided
1. (A) Isthmus
2. (A) people can work easily in other European union countries.
hope this helped, please mark brainliest :)
The P wave can move through solid rock and fluids, like water or the liquid layers of the earth. It pushes and pulls the rock it moves through just like sound waves push and pull the air. ... P waves are also known as compressional waves, because of the pushing and pulling they do.
