A—
This sentence pretty much sums up what the writer of the passage wants to talk about. The other ones do not fit with the sentence “water is one factor that is necessary for growth” and do not fit the idea of the passage, which is what factors affect plant growth.
Answer:
Will Human Life on Earth Come to an End?, Seventh Grade ...www.readworks.org
Explanation:
Joe Redington Sr invented modern long-distance dog Racing, turned into the Alaska State deport.
He bring back to prominece the sport by organizing the long-distance race, looking to save the sled dog culture and Alaska Huskies, witch were being extint in the region, he used to say ¨Dogs will always keep you warm and take you there¨, ¨If he didn´t see a dog in home entrances, he didn´t had a Good feeling¨ also he did want to preserve the historical Iditarod Trail between Seward and Nome.
Since the 70´s the competition has grown even with financial issues, but it became a very well renowed sport that later the competitors where sponsored as any other sport.