Which of these sentences should end with a question mark? walking is good exercise it keeps you physically fit, and it enables you to notice new things how long has it been since you noticed something fascinating in nature

Does it really take that much effort

How long has it been since you noticed something fascinating in nature

this would be considered false.. or falso

authors choose a genre based on their purpose. fiction works well for teaching a lesson, as in fables. however, presenting facts and opinions in nonfiction might be a better way to present information. when authors begin to write, they think about what they want the reader to understand or experience. while fiction may be the best genre for storytelling, nonfiction may be the most clear for sharing facts, so both genres have merits.