One method of terraforming Mars would be to (11) ____ asteroids at the planet. Rockets attached to enormous asteroid would propel it towards Mars, taking ten years to(12) ____ the enormous
distances required. The asteroid would (13) ____ the planet with incredible force and (14)____ enough energy to (15) ____ the planet’s temperature. The result would be a temperate climate and lots of water from melting ice caps
A-cover
B-create
C-hit
D-increase
E-land
F-drive
G-power
H-rise
I-shoot