Explanation

Let member be = x 

Increased average = x*5

Given Condition:

x*5=38-18

x= 4

Explanation

Explanation

The mantle–core boundary is the Gutenberg discontinuity at a depth of about 2,800 kilometres.

The outer core is thought to be liquid because shear waves do not pass through it.

Explanation

Answer:

 B

The density of sea water is highest as depth increase and salinity increase.

Explanation

Explanation

A closed economy is one that does not swap their trading with outside economies.

The closed economy is independent, meaning no imports enter the country and no exports leave the country.

Explanation

 Electric lines of force are always diverging from positive charge and they converge at a negative charge.

Explanation

Succulent, any plant with thick fleshy tissues adapted to water storage.

Explanation

The 2,400MW Hassyan clean coal power station is being developed in Saih Shuaib, Dubai, UAE at an estimated cost of $ 3.4 billion.

Explanation

• When an angle measures to be an exact 90 degrees, it is called a right angle.
• It is also called a perpendicular angle.

Additional information:

• Acute angles measure less than 90 degrees.
• Right angles measure 90 degrees.
• Obtuse angles measure more than 90 degrees.