Question Discussion & Solution

The sound that Elephant makes is called a Trumpet.

Similarly,

the sound that Horse make is called Neigh.

Hence, Horse is related to “Neigh”.

Additional Information 

Some important animal sounds:

The correct answer is option 4, i.e Carbon.

• Carbon forms the maximum number of compounds in the periodic table.
• Since carbon has the property of tetra valency and catenation so they can form a maximum number of compounds.
• Carbon exists in several allotropic forms. Graphite and diamond are examples of allotropes of carbon that have different properties.
• The atomic number of carbon= 6. It lies in the 14th group in the periodic table.

The correct answer is Magnesium Sulfate.

• Magnesium Sulfate is the industrial name of Epsom.
• Magnesium sulfate is a magnesium salt having sulfate as the counterion.
• It has a role as an anticonvulsant, a cardiovascular drug, a calcium channel blocker, an anaesthetic, a tocolytic agent, an anti-arrhythmia drug, an analgesic, and a fertilizer. It is a magnesium salt and a metal sulfate.

Key Points

• Magnesium Sulfate Formula Structure:  

Additional Information

LAN :

• LAN stands for Local Area Network.
• It's a group of computers which belong to the same organisation, and are linked within a small geographic area using a network using the same technology (Ethernet).
• E.g. Wi-Fi

MAN :

• MANs (Metropolitan Area Networks) connect multiple geographically nearby LANs to one another at high speeds.
• A MAN lets two remote nodes communicate as if they were part of the same local area network.
• E.g. microwave antenna on a TV news van, extended high in the air, beaming video and sound back to the main TV studio.

WAN:

• A WAN (Wide Area Network or extended network) connects multiple LANs to one another over great geographic distances.
• WANs operate using routers, which can "choose" the most appropriate path for data to take to reach a network node.
• E.g.: Internet

PAN:

• A personal area network (PAN) is a network used for data transmission amongst devices such as computers, telephones, tablets, personal digital assistants, fax machines and printers, that are located close to a single user

E.g. Bluetooth

Given: Girl, Boy, Human

All human are boy and girl.