Rebirth in the Apocalypse: I Hoard Supplies to Feed Three Billion People

(Apocalypse + Rebirth + Space + System) Natural disasters occur frequently and the world is on the verge of collapse. First came the high temperature, then the zombies came, and then came the extreme cold, acid rain, heavy fog, eternal night, and earthquakes. Su Ji, who struggled to survive for 10 years in the apocalypse, finally died in the hands of an acquaintance... When she opened her eyes again, she was reborn three months before the end of the world, and her dead relatives returned to her. I opened the bag of tips left by my master and accidentally activated the system and space. I didn't have time to be happy yet. The system assigned her an impossible task - [Feed 3 billion people in 10 years! Su Jizheng was worried that she had no money to stock up on supplies, so the low-key Su mother gave her 1 billion. Stock up on 1 billion supplies, kill zombies, accumulate crystal cores, open apartments, engage in planting, and develop technology... Ten years have passed in the blink of an eye. Su Ji stood at the highest point of the science and technology tower, looking at the prosperity beneath her feet. Zombies working hard, orderly spaceships in the sky, more food in the fields than can be eaten in several lifetimes, and the happy smiles of 3 billion people. "Congratulations to the master for completing the mission. Now I will redeem the mission reward for you. Please choose..."