Explanation:

The Baltic Countries are those countries that are in the Northern Europe and in the eastern coast of Baltic sea. The countries that are referred to Baltic state include Estonia, Lithuania and Latvia The countries that border Baltic sea include Russia, Sweden, Denmark, Estonia, Finland, Latvia, Germany, Poland, Lithuania.

Explanation:

LiDAR (Light Detection And Ranging)

It is a remote sensing method that uses light in the form of a pulsed laser to measure ranges (variable distances) to the Earth.
It bounces pulsed laser light off the ground, revealing contours hidden by dense foliage.
These light pulses—combined with other data recorded by the airborne system— generate precise, three-dimensional information about the shape of the Earth and its surface characteristics.
LIDAR systems allow scientists and mapping professionals to examine both natural and manmade environments with accuracy, precision, and flexibility.
A LIDAR instrument principally consists of a laser, a scanner, and a specialized GPS receiver.
Airplanes and helicopters are the most commonly used platforms for acquiring LIDAR data over broad areas.
LiDAR can measure the distance to surrounding objects up to 5 meters away, but won’t fare well in identifying objects in the vicinity.
Also, it can’t perform well in fog, rain, snow and dusty weather.

Explanation:

About NMIS

The NMIS aims to capture the information regarding the movement of migrants and facilitate the smooth movement of stranded persons across States.
The key data pertaining to the persons migrating has been standardized for uploading such as name, age, mobile no., originating and destination district, date of travel etc., which States are already collecting.
States will be able to visualize how many people are going out from where and how many are reaching destination States.
The mobile numbers of people can be used for contact tracing and movement monitoring during COVID-19.
Benefits
The portal helps maintain a central repository on migrant workers and help in speedy inter- State communication/co-ordination to facilitate their smooth movement to native places.
It has additional advantages like contact tracing, which may be useful in overall COVID-19 response work.

Explanation:

Troglomyces twitteri
Troglomyces twitteri is a type of parasitic fungus.
It belongs to an order called Laboulbeniales — tiny fungal parasites that attack insects and millipedes.
These fungi live on the outside of host organisms; in this case, on the reproductive organs of  millipedes.
Laboulbeniales were first discovered in the middle of the 19th century.

Explanation: The Champaran peasant movement was launched in 1917-18. Its objective was to create awakening among the peasants against the European planters. These planters resorted to illegal and inhuman methods of indigo cultivation at a cost which by no canons of justice could be called an adequate remuneration for the labour done by the peasants.