Questions

A storage device refers to a computing hardware used to store information permanently or temporarily. The device can be external or internal to a computer, server, and other computing systems.

There are two types of storage devices used with computers: a primary storage device, such as RAM, and a secondary storage device, like a hard drive. Secondary storage can be removable, internal, or external.

Here printer is not the storage device, it is an outut.

According to Rayleigh's law, the intensity of scattered light varies inversely as the fourth power of its wavelength. Sunlight consists of seven colours. Of these, red has the maximum wavelength. During sunrise and sunset, the rays have to travel a larger part of the atmosphere because they are very close to the horizon.Therefore, light other than red is mostly scattered away. Most of the red light, which is the least scattered, enters our eyes. Hence, the sun and the sky appear red.

India is the 2nd largest importer of weapons in the world, as per 'Trends in International Arms Transfers 2018.

Global warming is the increase in the earth’s average temperature due to release of several greenhouse gases to the atmosphere by humans. Global warming is affecting many parts of the world.

Natural Causes include :

1. Solar Activity

2. Melting Permafrost

3. Forest Fires 

Human made causes include :

1. Deforestation

2. Overpopulation

3. Landfills

4. Mining

5. Fertilizer Use

Collisions occur at curves because speed on the approach is too great.

The main causes for the boat accidents are ::

1. Excessive speed

2. Machinery failure

3. Operator inexperience

4. Alcohol use

5. Operator inattention

6. Lack of proper look-out

7. Careless/reckless behavior and hull failure

8. Hazardous waters

and some more...

Single selled organisms are also known as Unicellular organisms in which they have only one cell.

Examples are :: Fungi, Algae, Amaeba, Paramaecium,...

Hence, all the above given options are single selled organisms.