Explanation

• "Angry with" is the correct preposition when referring to a person.
• "Angry at" is used for situations or things.

Last verified on 16-07-2026

Explanation

The additive inverse of a number is the value that, when added to the original number, results in zero.

For 1/7, the additive inverse is:

-1/7

Since:

1/7 + (-1/7) = 0

Last verified on 09-07-2026

Explanation

• Sublimation is the process in which a solid directly changes into a gas without passing through a liquid phase.
• This endothermic phase transition
• Occurs when a substance absorbs enough energy to overcome intermolecular forces.
• Deposition: Gas to Solid (the reverse process).
• Examples: Dry ice, iodine, frost/snow.

Explanation

• Marathon race is a long-distance running event standardized internationally.
• The official distance is 42.195 km (26.2 miles).
• Standardized at the 1908 London Olympics to start at Windsor Castle and finish in front of the royal box.
  

Last verified on 20-01-2026

Explanation

Given that A+B = 12 + B + C

=> A – C = 12 + B – B = 12

C is younger than A by 12 years.

Explanation

Magnesium Sulphate (Epsom salt) is a common laxative that helps relieve constipation by drawing water into the intestines.

It works by softening stool and promoting bowel movements when taken in proper dosage.

Explanation

Friedrich Frobel (1782–1852) was a German educator who developed the Kindergarten system.

He believed in learning through play and introduced structured activities for early childhood education.

Explanation

- Current is the same through all resistors connected in series.  

- Total resistance (R_total) = R₁ + R₂ + R₃ + ... (sum of all resistances).  

- Voltage divides across each resistor according to their resistance (Ohm’s law: V = IR).  

- If one resistor breaks, the entire circuit stops working (open circuit).  

- Series circuits have only one path for current flow.  

Explanation

Explanation

Volt (V) = Joule per Coulomb (J/C), meaning it measures the electric potential energy per unit charge.

This unit defines how much energy (J) is given to each Coulomb (C) of charge in a circuit.