Analyst Questions

DocumentDB is a NoSQL document-oriented database and records saves in key-value pairs. It's same as the other NoSQL document-oriented such as MongoDB.

The lux (lx) is the SI derived unit of illuminance and luminous emittance, measuring luminous flux per unit area. It is equal to one lumen per square meter.

Plants that grow in Saline Water are called Halophytes.

Here asked for the value of 28 tens

=> 28 x 10 = 280.

Caverns are openings in the ground. Some famous caverns in the United States are Mammoth Cave, Carlsbad Caverns, Wind Cave, and Luray Caverns.

When rainwater trickles down through the soil, it carries carbon dioxide from the air with it. This turns acidic as it moves through the soil, joining with carbon from decaying plants. This acidic rainwater then eats away at, or erodes, the rock under the ground, forming a cave or cavern. For this process to occur, the rock must be the right type; limestone, dolomite, and gypsum are common.

Commissioned means Authority granted for a particular action or function.

Here, in the given options Dismiss is the only word which is opposite in meaning to commissioned.

Hence, Antonym of  Commissioned is Dismiss.

The one word substitute for "a person who is always dissatisfied" is malcontent.