<h2>
Answer:</h2>
10
<h2>
Explanation:</h2>
Specific gravity (also called relative density) is the ratio of the density of an object (or substance) to the density of a reference substance (mostly water). It has no unit and is given by the following;
Specific gravity = 
Specific gravity is also given by the ratio of the weight of the object in air to the loss of weight of the object in water. i.e
Specific gravity =
--------------(* * *)
In this case;
i. The object is the solid which has a weight of 20gf in air.
ii. The loss of weight of the solid in water is the difference between the weight in air (20gf) and the weight in water (18gf).
Therefore the loss of weight is
20gf - 18gf = 2gf
Now substitute these values from (i) and (ii) into equation (* * *) as follows;
Specific gravity = 
Specific gravity = 10
Therefore the specific gravity of the solid is 10
Most languages require a compiler. This is because machine code consists of only 0s and 1s, which is executable. All other languages have to be translated into machine language by a compiler.
Anti-virus software that just scans your computer is the least effective.
Answer:
B) drop-down arrow, Themes
Explanation:
An Excel theme consists of a collection of colors, fonts, and effects that can be applied to a slide to add beauty. Themes make work to be professional, consistent and make adhering to design guidelines easy.
To change theme color, first open a Blank Workbook. Secondly, On the Page Layout tab, in the Themes group, click Themes drop down arrow beside the color button.
Answer:
AWS Trusted Advisor
Explanation:
The IT management team can choose to host their system in Amazon Web Service (AWS) and utilize the AWS Trusted Advisor service to manage the resources. AWS Trusted Advisor is an online tool offered by Amazon to provide guidance to their client to manage the cloud resources by following some recommended good practices. This can save cost, improve system availability and performance and also to improve system security. AWS Trusted Advisor provide recommendation in real time and on regular basis. It will scan a client's subscribed cloud-based infrastructure and provide recommendation actions in five aspects which are cost optimization, performance, security, fault tolerance and service limits.