Questions

Economics deals primarily with the concept of Scarcity and choice. Scarcity is the limited availability of a commodity, which may be in demand in the market. Scarcity also includes an individual's lack of resources to buy commodities.

Parabola, because when the coin is dropped at a particular point, it has the same velocity as the running train. So, by Newton's first law, it continues its motion horizontally with that velocity. But then, it is also pulled down by earth's gravity continuously. In this situation its horizontal motion gives way to the parabolic motion until it reaches the ground.

The highest of this peak is 1772 m.

Switching between portrait and landscape modes involves the page setup dialog box.

7th may is considered as world's Asthma day .This worked with the theme of "you can controll your asthma"