Questions

Magnesium is dissolved in seawater at a concentration of about 1,000 parts per million and is the only metal directly extracted from seawater.

Concatenation of text means adding a word with other word. It can be done using Ampersand (&).

For example :

'Amper' & 'sand' = Ampersand 

The SCPCA method can be used to evaluate channel members.

a) Sales (S): How much sales each channel member can give within a cetain time frame

b) Cost(C): How much cost would be incurred for each channel?

c) Profitability(P): Which channel can give better profitability to the company?

d) Control(C): Whether company can have better control over its channel members or not.

e) Adaptability (A): Whether the channel alternatives are flexible enough to any changes or not. The channel meeting the objectives of the company is selected

The biggest concern is the cost incurred for test automation. Also, often s/w test automation requires skilled personnel and authentic test automation tools. Purchasing license of such tools is a costly affair.

Also the time required for test automation is more. Automation often requires recording the sequence of operations you need to perform in order to execute a particular test case and comparing the final o/p with the expected o/p. Functions/macros need also be written sometimes for some test cases. All this could be a time consuming job. 

Membrane bound organelles are not found in the cells of Prokaryotes whereas Eukaryotes have nucleus and membrane bound organelles.

For example : Bacteria is prokaryotic organism with lack of nucleus and membrane bound organelles whereas fungi is a eukaryotic with nucleus and membrane bound organelles.