-large stream of water
-come from mountain, or narrow streams of water join together to form a river
-gradually widen in its course and then, fall into a sea, or lake
-importance of river: agricultural, health citizen, drinking supply, trade and commerce, beautiful scene lead to tourism
-weakness: do harm to us, like wash away houses during rainy season, flood, cattle and crops destroy due to flood, and cause loss to country
-conclusion: it is a blessing to us as it helps us in many ways.