Answer:
Option C. is correct.
Explanation:
GIS stands for Geographic Information System.
GIS is a computer system that is used to record information on to maps.
Five key components of GIS are as follows:
1. Hardware
2. Software
3. Data
4. People
5. Methods.
GIS is based on at least two important areas of technology: gathering digital spatial data and creating digital maps.
Answer:
True
Explanation:
Kepler's second law states that for a planet orbiting a star, if we join the planet and the star by an imaginary line, such line sweeps equal areas in equal times.
Let's imagine the planetary orbit is elliptical. When the planet is closest to the star it travels a large distance in its orbit but takes little time to travel. When the planet is furthest from the star, it travels a small distance in the orbit but in a long time so it ends up sweeping the same are as in the first case.
Therefore, this means when the planet is closest to the star it must have a greater speed than when it's furthest. We know this thanks to the speed formula v = d/t (velocity equals distance divided by time).
For a great distance and small time, speed is a large value.
For a small distance and a great time, speed is a small value.
Manned—
Apollo 11
International space station
Skylab
Unmanned—
Galileo
Mars exploration rover
Hubble space telescope
<span>Mountains that have developed because of compressional stress colliding plates that force rock layers upward are called fault-block mountains. </span>
A tsunamis is a major damaging waves that are cause by earthquakes but other waves are made by just air and gravity
