Matter is anything that possesses mass, occupies space and may be perceived through one or more senses.

                           The physical divisions of matter are:

1. Solid : Solid matter is composed of tightly packed particles. A solid will retain its shape; the particles are not free to move around.

2. Liquid : Liquid matter is made of more loosely packed particles. It will take the shape of its container. Particles can...

II)Cr2+ is reducing agent as its configuration changes from d4 to d3, when it is oxidized to Cr3+ .The d3 configuration have a half-filled t2g level which is very stable. On the other hand, the reduction of Mn3+ to Mn2+ results in the half-filled (d5) configuration which has extra stability hence Mn3+ acts as oxidizing agent.

In mitosis, the prophase is further understood by dividing it into the given sub-stages:

1.Leptotene :

In this stage the nucleus enlarges in size in the chromosome. The chromosomes appear thin, thread-like and single-stranded in this stage. They have swollen or beaded structures along their length and their ends appear converged towards one side of the nucleus called bouquet.

2.Zygotene:

In this stage, the identical chromosomes come together and form bivalent or homologous pairs. Further, ...

4.कमपयुटर हारडवेयर तिन परकारमा विभाजित छ। तिनीहरू हुन :

इनपुट उपकरण ( माउस, किबोरड, सकयानर)

आउटपुट उपकरण ( मनिटर, परिनटर, सपिकर)

परशोधन उपकरण (सि.पी. यु)

सोरेज उपकरण ( सिडि, पेन.डराइभ)

5.धेरै पहिले, कमपयुटरहरू मुखय रूपमा संखयाहरू गणना गरन र शबद परशोधन गरन परयोग गरिनथयो। समय परिवरतन भएसँगै, कमपयूटरले हामीलाई हामरो दैनिक कारयहरूमा मददत गरनको लागि विकसित गरेको छ। आजकल हामी वयकतिगत रमाइलोको लागि आफनो कमपयुटरलाई खेलको लागि परयोग गरेर र इनटरनेटमा जानकारी फेला पारन परयोग गरछौं। हामरो दैनिक जीवनमा कम...