If i came across a unfamiliar word what should i do to figure it out?

(1) fire extended humans’ geographical boundaries by allowing them to travel into regions that were previously too cold to explore. (2) it also kept predators away, allowing early humans to sleep securely. (3) fire, in fact, has been a significant factor in human development and progress in many ways. (4) other obvious benefits of fire are its uses in cooking and in hunting. (5) probably even more important, however, is that learning to control fire allowed people to change the very rhythm of their lives. (6) before fire, the human daily cycle coincided with the rising and setting of the sun. (7) with fire, though, humans gained time to think and talk about the day’s events and to prepare strategies for coping with tomorrow. the sentence that expresses the main idea is: (type the number of the sentence. then click “go.”)

We must understand the connections between the climate crisis and the afflictions of poverty, hunger, hiv-aids, and other pandemics. as these problems are linked, so too must be their solutions. we must begin by making the common rescue of the global environment the central organizing principle of the world community. which statement best describes gore's use of evidence to support his argument? a. gore makes connections between events to support his argument that solutions to the climate crisis will also solve other problems. b. gore provides dramatic details to support his argument that solutions to problems of this magnitude are often rare. c. gore compares crises in the world to support his argument that the problem of climate change must take a backseat to other problems. d. gore describes positive outcomes to support his argument that people should remain optimistic about finding solutions to climate change.

Simple movements prove to be very significant and saves the rest of the day of the poet from being wasted. explain on the basis of the poem dust of snow class 10 dust of snow english