(Q).
Q: The waste of cows releases a lot of which type of gas? Choices: - carbon dioxide - oxygen - sulphur - methane A:
(A).
methane

(Q).
Q: What do you call compounds that have covalent bonds? Choices: - reflectivity compounds - valence compound - ions - covalent compounds A:
(A).
covalent compounds

(Q).
Q: What form does water take on the planet mars? Choices: - plasma - gas - liquid - ice A:
(A).
ice