Explanation

Nickel and Iron present in the inner core of the Earth are together known as NiFe.

The extreme pressure exerted on the inner core by the rocks of the layers lying above causes the NiFe to be in a solid state.

Explanation

World Bank:

World Bank established: July 1944

World Bank was established during: the Bretton Woods Conference

World Bank Members: 189

World Bank's aim: to provide loans and grants for various projects

World Bank headquarters: Washington, USA

IMF:

The International Monetary Fund (IMF) is a major financial agency of the United Nations and an international financial institution

IMF founded: 27 December 1945

IMF headquarters: Washington, USA

IMF total members: 190

IMF official language: English 

Explanation

1. Current Ages:

   • Let Zoya’s current age be $x$
   • Then, Zaid’s current age is $6x$ (since he is six times as old as Zoya).

2. The sum of Ages in 7 Years:

   • In 7 years, Zoya's age will be $x + 7$ and Zaid's age will be $6x + 7$.
   • The sum of their ages in 7 years will be $(x+7)+(6x+7)=49$.

Step 1: Formulate the Equation

x+7+6x+7=49
$$7x+14=49$$

Step 2: Solve for $x$

Subtract 14 from both sides:

$$7x=35$$

Now divide by 7:

$$x=5$$

So, Zoya’s current age is $5$ years and Zaid’s current age is:

$$6x=6\times 5=30$$

Step 3: Determine Zaid’s Age When Zoya Was Born

When Zoya was born, Zaid would have been:

$$30-5=25$$

Explanation

A hypersonic weapon is a weapon capable of travelling at hypersonic speed, defined as between 5 and 25 times the speed of sound or about 1 to 5 miles per second.

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Explanation

Explanation

Explanation

SOLO stands for a model describing the levels of understanding in learning outcomes.

It helps assess how deeply students have grasped a concept.

Explanation

Total students = 26

Students who like football = 21

Students who like cricket = 14

Let x be the number of students who like both football and cricket.

Using the formula:

(Football ∪ Cricket) = Football + Cricket – Both

So,

26 = 21 + 14 – x

26 = 35 – x

x = 35 – 26

x = 9

Explanation

Soil fertility is the ability of a soil to sustain agricultural plant growth.

It is maintained without addition of nutrition due to microbial activity.

Microbes increase the amount of nutrients in soil available for plants.

Explanation

PIA flight landed in china in 1963

 PIA, in 1964 became the first non-Communist airline to fly to China

PIA was founded on 29 October 1946 as Orient Airways,

Orient Airways Ltd. was an airline established in 1946 new name Pakistan International Airlines in 1955

The airline shifted operations to the newly independent state of Pakistan in 1947.

Pakistan International Airlines is an international airline of Pakistan

SH19-8-2023