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Answer:
A green environment b universal formed by small elements c telescope septographs and camera s and Space crafts and computer s are used by the astronuts
Answer:
b. Reduce, reuse, and recycle. Cut down on what you throw away. ...
Volunteer. Volunteer for cleanups in your community. ...
Educate. ...
Conserve water. ...
Choose sustainable. ...
Shop wisely. ...
Use long-lasting light bulbs. ...
Plant a tree.
c. Our universe began with an explosion of space itself - the Big Bang. Starting from extremely high density and temperature, space expanded, the universe cooled, and the simplest elements formed. Gravity gradually drew matter together to form the first stars and the first galaxies
d. Alidade.
Armillary sphere.
Astrarium.
Astrolabe.
Astronomical clock.
the Antikythera mechanism, an astronomical clock.
Blink comparator.
Bolometer.