Answer:
A spacecraft is a vehicle or device designed for travel or operation outside the Earth's atmosphere, whereas a satellite is an object that orbits the Earth, the moon, or another celestial body. ... The Voyager and Pioneer spacecraft are not satellites because they are not in an orbit around any object.
The Area Rule, is a design technique used to reduce an aircraft's drag at transonic and supersonic speeds, particularly between Mach 0.75 and 1.2. It improved everday aviation by increasing overall speed and efficiency.
Answer:
answer B
Explanation:
The land features depend on the geology , the climate of the earth and formation of land features is a continuos cycle it could alter from time ,not providing clear evidence about history of that specific area
