Give a small definition for:
Spiral galaxy , Satellites , Nebula , Curvature , Sphericity , Biosphere , Ecosystem , Transpiration , Asteroid.
Answers
Answer:
Hello mate
Explanation:
1. Spiral galaxy :- a galaxy in which the stars and gas clouds are concentrated mainly in one or more spiral arms.
2. Satelites:- an electronic device that is sent into space and moves around the earth or another planet for a particular purpose
3. Nebula:- a bright area in the night sky that is caused by a mass of dust or gas or by a large cloud of stars that are far away.
4. Curvature :- the curvature is the amount by which a curve deviates from being a straight line, or a surface deviates from being a plane. For curves, the canonical example is that of a circle, which has a curvature equal to the reciprocal of its radius. Smaller circles bend more sharply, and hence have higher curvature.
5. Spherecity :- Sphericity is a measure of how spherical an object is. Proposed by Waddell in 1935, the sphericity of a particle is defined as the ratio of the surface area of an equal-volume sphere to the actual surface area of the particle: where Vp is volume of the particle and Ap is the surface area of the particle.
6. Biosphere :- the part of the earth’s surface and atmosphere in which plants and animals can live.
7. Ecosystem :- all the plants and animals in a particular area considered together with their surroundings
8. Transpiration :- Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. Water is necessary for plants but only a small amount of water taken up by the roots is used for growth and metabolism. The remaining 97–99.5% is lost by transpiration and guttation.
9. Asteroid :- any of the many small planets that go around the sun. They are also called minor planets
✯Question✯
- Definitions for:
➙ Spiral galaxy
➙ Satellites
➙ Nebula
➙ Curvature
➙ Sphericity
➙ Biosphere
➙ Ecosystem
➙ Transpiration
➙ Asteroid
✯Answers✯
- Please go through the attachment!
