Questions

Sound intensity or level is measured by a unit called a decibel. An 85 decibel noise level is not a safe standard for the public.

Hence, Acceptable noise level for human ear is less than 85 db.

Usain Bolt is branded as "Fast Man on Earth".

Answer:  U

Explanation:  Start with the D on the outer left of the diagram, and move clockwise around the outer segments, then start on the N anti-clockwise around the inner segments. Letters advance through the alphabet in steps of 3, then 4, 5, and 6, repeating this sequence.

ADP stand for Army Doctrine Publication.  An official written document that provides established principles in the U.S. Army that support national objectives.

A computer software are of two types. They are :

1. System software

2. Application software

Systems software includes the operating system and all the utilities that enable the computer to function. 

Application software includes programs that do real work for users.

Hence, Operating system is an example of system software.

Economic resources are those goods and services that can be converted into valuable products for individual and business purposes.

There are four major types of economic resources:

1. land,

2. labor,

3. capital and

4. entrepreneurship.

Land and labor are natural and human resources, while capital means physical resources or money.

Entrepreneurship converts these resources into usable goods.

However, resources have finite values, and proper utilization depends on economic systems and economic decisions.