What is an air mass? O A. A mass of air that is similar in size and temperature. a B. A mass of air that is similar in temperature and wind speed. C. A mass of air that is similar in temperature and humidity C D. A mass of air that is similar in humidity and movement. Select an answer

Look at the data above. provide an explanation for europe’s projected population decrease by the year 2050. (i'm doing this for future kids) the answer is : the percentage of people over the age of 65 and under the age of 15 in europe is currently the same at 16% each. therefore, the majority of the population is between the ages of 16 and 64. in forty years from now, in 2050, a greater percentage of the population will be over the age of 65. europe also has a relatively long life expectancy of 75 years. this, combined with a low birth rate means that by 2050 europe’s population will actually be less than it is today.

Migrant workers who fill employment needs in their host country often send remittances to their home countries

Where the main factor that enabled the growth of cities and civilizations was the existence of