महारथी अर्जुन को गीता का उपदेश किस महापुरुष ने दिया?​

Answer:

The two boys in London were surprised and fascinated when they saw fresh muddy footprints of human being on the steps of a house, but no man was there making them! As they looked, a fresh footprint appeared from nowhere. The boys followed, fascinated until the footprints got disappeared.

Answer:

The footprints were made without the presence of someone but there they were, caked with mud.

The boys were following the trail of a scientist who has discovered a drug which if swallowed can make a man invisible.

Explanation:

• This is an extract from the chapter 'Footprints without Feet'.
• This is a story of an eccentric scientist 'Griffin' who was experimenting and succeeded in inventing a drug that can make the human body transparent.
• The boys saw fresh footprints outside the house but there was no one then they caught new footprints so they followed them as it was a fascinating mystery for them.

Hence, the boys described the footprint as a wonderful mystery in sheer amazement .

Answer:

The 12 pairs of ribs curve around the chest from the back. Each pair is joined to the bones (vertebrae) of the spine. In the front of the body, the upper seven pairs of ribs are attached to the sternum by cartilage. The eighth, ninth, and tenth pairs of ribs join the cartilage of the pair above.

Explanation:

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Answer:

व्यापार, विज्ञान या इंजीनियरिंग में किसी विशेष लक्ष्य की प्राप्ति हेतु जो विस्तृत कार्य-योजना बनायी और कार्यान्वित की जाती है उसे परियोजना (project) कहते हैं। इसके अन्तर्गत पूरे कार्य को छोटे-छोटे कार्यों के रूप में विभक्त करके उनका समयबद्ध क्रम प्रस्तुत किया जाता है।

Answer:

B. A country where the density of population is more than 200 persons per square kilometers.