European relations with Russia became strained after the Russian invasion of what country in 2014?

The latitude zero degrees is known as the: 

Which of the following refers to the controlled breeding of plants and animals, which dramatically gave humans the power to modify landscapes? 

What is the cultivation of aquatic organisms for food called? 

The tundra and subarctic zones in Russia and the Near Abroad are permanently frozen to a depth of three meters. What is the frozen layer called? 

Geography knowledge enables people to understand the relationships among people, places, and environments over time. This statement best describes which of the following six essential elements of geography as outlined by the National Geographic Society?

Which of the following is the total output of goods and services that a country produces for home use in a year? 

What term describes the number of plant and animal species present along with the variety of genetic material present in these organisms? 

Which type of map would a map of Europe with each country depicted in different colors be classified as? 

This type of map uses dots to represent a stated amount of some phenomenon within a political unit.