The third person is he/she/it/they.
If I didn't fully answer your question, please comment and I'll reply.
The best answer would be "Using the atomic bomb would change the world forever by making it a more dangerous place."
Answer: Vikings, Muslims, and Magyars invaded Europe at a time of political weakness.
Explanation:
Feudalism refers to a system where the King or Queen was the absolute monarch and as a result owned all the land but could give it to Nobles who would then become rich and powerful.
This system was as a result of people needing such protection that they bounded around the Nobles to protect them when invasions from groups such as the Vikings, the Muslims and the Magyars threatened their security in a way the monarchs could not effectively protect them.
Answer:
the Galilean Invariance and discovery of Isochronism in pendulums.
Explanation:
Galileo is the first known person who studied the skies in detail with a telescope. He made numerous significant discoveries in astronomy including the Phases of Venus and the four largest moons of Jupiter. His contributions to science include the Galilean Invariance and discovery of Isochronism in pendulums.
Hoped that helped:P
Answer:
uhhh if you look it up it says
"the intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.
'the world of science and technology'"
so yeah-
