2.north and west
3. Gemeny
Answer:

Explanation:
The formula for apparent brightness is given by the next inequation:

Where B equals apparent brightnes, L equals luminosity and D equals distance.
SO we just have to clear distance from the formula and are left with the inequation to calculate distance:

Answer:
The population density of terai has increased from 254 people per square kilometer to 392 people per square kilometer.
Explanation: