Which of the following was a cause of northern european immigration to the united states in the 1840s and 1850s?

The two main groups to immigrate during this time were the Irish and British. The Irish bitterly resented the British who ruled Ireland. Many rented from British landlords who treated them as second class sub-citizens. It was densely populated, and suffered from intense economic hardship. Aside from political persecution, the Irish economy depended heavily on the potato crop which was wiped out by potato blight. 

Does this help?

Freedom of religion, freedom of speech, being protected by our military and first responders on a daily basis and many many more. 

Taking a shower. why is cause as you shower the water is running more than taking a bath, washing a load of dishes or brushing your teeth. water is being used more by taking a shower and depending on how many people live in the household that take showers. some take a shower twice a day.