Answer:
I believe it's two, gunpowder and crossbow
Explanation:
The soonest realized crossbows were designed in the main thousand years BC, not later than the seventh century BC in old China, not later than the fourth century BC in Greece (as the gastraphetes).
Gunpowder was developed in China at some point during the main thousand years AD. The most punctual conceivable reference to gunpowder showed up in 142 AD during the Eastern Han administration when the chemist Wei Boyang, otherwise called the "father of speculative chemistry", expounded on a substance with black powder like properties.
Answer:
C. growing leaves to warm up
<span> Rift Valley was formed by violent
subterranean forces that tore apart the earth's crust. These forces
caused huge chunks of the crust to sink between parallel fault lines and
force up molten rock in volcanic eruptions.</span>
Answer:
C is your answer, hope this helps.
Explanation:
