Category: Everyday Science MCQs Set-1

The unit of home electricity energy consumption is?

A. Watt hour
B. Kilowatt hour
C. Joule hour
D. None of these

Answer

Correct Answer: B. Kilowatt hour

Detail about MCQs

The unit of home electricity energy consumption is typically measured in kilowatt-hours (kWh). So, option B, “Kilowatt hour,” is the correct answer. A kilowatt-hour (kWh) is a unit of energy equivalent to one kilowatt (1 kW) of power expended for one hour. It is commonly used as a billing unit for energy consumed by residential and commercial customers. For example, if a device with a power rating of 1 kilowatt (or 1000 watts) operates continuously for one hour, it would consume 1 kilowatt-hour of energy. In practical terms, it’s a measure of how much energy is used over time, and it’s what you’re typically billed for by your utility company

What is the number of amino acids in an insulin molecule?

A. 41
B. 21
C. 51
D. 22

Answer

Correct Answer: C. 51 


Detail About MCQs

Insulin is composed of two peptide chains referred to as the A chain and B chain. A and B chains are linked together by two disulfide bonds, and an additional disulfide is formed within the A chain. In most species, the A chain consists of 21 amino acids and the B chain of 30 amino acids. acids are present in insulin. 

How far Sun Light can penetrate into the Ocean?

A. 100 Meter
B. 200 Meter
C. 300 Meter
D. None of the Above

Answer

Correct Answer: B. 200 Meter

Detail about MCQs

sunlight can penetrate into the ocean to a depth of about 1,000 meters (1 kilometer) under ideal conditions, it rarely provides significant light beyond a depth of 200 meters. The ocean is divided into three main zones based on depth and light level, which are:

  1. Epipelagic Zone (Sunlight Zone): This is the top layer of the ocean, extending from the surface down to about 200 meters. In this zone, there is enough sunlight for photosynthesis to occur, and it supports a diverse range of marine life. The availability of light decreases with increasing depth in this zone.
  2. Mesopelagic Zone (Twilight Zone): Below the epipelagic zone and extending to around 1,000 meters deep is the mesopelagic zone. In this zone, sunlight is limited, and it is often referred to as the “twilight zone” because only faint traces of sunlight penetrate to these depths. Photosynthesis is not possible here, and marine organisms have adapted to low light conditions.
  3. Bathypelagic Zone (Midnight Zone): Beyond the mesopelagic zone, the bathypelagic zone extends to the ocean floor. This zone is characterized by complete darkness, with no significant sunlight reaching these depths. Marine life in this zone typically relies on bioluminescence and other adaptations to survive in the absence of light.

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