What made the climate of northern africa change from tropical to grasslands and then to desert?

During the 1920s, many people looked for ways to maintain traditional social order as the nation rapidly moved into a new, modern era. which groups or types would most likely be in this category?

Summarize how the changes in the u. s ecomony during world war ii affected african-americans and mexican farmworkers

What prevented the success of mao zedongs great leap forward? a- the people focused too much on tending their farms and not on industry. b- the goods being made were fewer and lower quality than expected. c- too little house in existed for everyone who wanted to live in communes. d- industry and mining operations in the cities required too many people. (the right answer will get brainliest)