After the Nazis conquered territory in Europe, they forced Jewish people to work as forced labor in the labor camps. The Jews were not even given proper amount of food. They were treated very badly and even had to work till they dropped dead. Those Jews that were unable to work were killed. I hope the answer helps you.
By using water and some of these types of seeds
Global warming is the process of increasing the average temperature of the Earth's oceans and atmosphere, which is massified by greenhouse gas-intensifying gases from a range of human activities, especially the burning of fossil fuels and changes in land use, like deforestation. While climate change includes warming and the “side effects” of warming.