I need help on all please whoever answers correctly will get brainliest! All guesses will be reported!

Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?

Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%

Examine the air pressure map. which type of line is shown on the map?