What nations led the way in early exploration? Why did one continue to explore while the other lost territory and prestige?

the answer is actually b.   as habitats are destroyed, animals and plants may become extinct.   , according to edge nuity

on november 6 and 7, 1917 (or october 24 and 25 on the julian calendar, which is why the event is often referred to as the october revolution), leftist revolutionaries led by bolshevik party leader vladimir lenin launched a nearly bloodless coup d'état against the duma's provisional government.