Questions

Among the given options, CH4 is a non polar molecule with symmetrical tetrahedral shape.

Foreign keys are the columns of a table that points to the primary key of another table. They act as a cross-reference between tables.

In detail : A Foreign key is a field (or collection of fields) in one table that uniquely identifies a row of another table or the same table. In simpler words, the foreign key is defined in a second table, but it refers to the primary key or a unique key in the first table.

Ganges

Members of Congress has five main functions:

1. lawmaking,

2. representing the people,

3. performing oversight,

4. helping constituents, and

5. educating the public.

The current Union Minister of Railways in India 2019 is Piyush Goyal. He is also holding the Ministry of Finance for temporary.

Aqueduct