The fine, powdery substance that covers the Moon's surface is called regolith. Because regolith is both readily available and high in oxygen ________ scientists have wondered whether it could be used as a potential source of oxygen for future lunar settlements.<br/><br/>Which choice completes the text so that it conforms to the conventions of Standard English?
MM
Mashaal Masha
Jan 06, 2024
The fine, powdery substance that covers the Moon's surface is called regolith. Because regolith is both readily available and high in oxygen ________ scientists have wondered whether it could be used as a potential source of oxygen for future lunar settlements.
Which choice completes the text so that it conforms to the conventions of Standard English?