Question

1. Delhi’s water condition 2. Air quality in Delhi Discuss history of air and water they have seen in the past and compare it with present conditions and also discuss the possibilities to control degrading conditions of air and water.​

Answer 1

Answer:

The main sources of air pollution in Delhi include vehicle exhaust, heavy industry such as power generation, small-scale industries like brick kilns, suspended dust on the roads due to vehicle movement and construction activities, open waste burning, combustion of fuels for cooking, lighting, and heating.

The DJB's water supply has reduced by 60-65 million gallons a day due to "severe shortage of raw water from Haryana", a statement said. The utility also clarified that there were no plans to cut supply to COVID-19 hospitals in Delhi due to the water shortage

Answer 2

Answer:

IEEE 1394 is an interface standard for a serial bus for high-speed communications and isochronous real-time data transfer. It was developed in the late 1980s and early 1990s by Apple in cooperation with a number of companies, primarily Sony and Panasonic. Apple called the interface FireWire. It is also known by the brands i.LINK (Sony), and Lynx (Texas Instruments).

IEEE 1394 Interface

FireWire symbol.svg

Type

Serial

Production history

Designer

Apple (1394a/b), IEEE P1394 Working Group, Sony, Panasonic, etc.

Designed

1986; 35 years ago[1]

Manufacturer

Various

Produced

1994–current

Superseded by

Thunderbolt and USB 3.0 for consumer use

General specifications

Length

4.5 meters maximum

Width

1

Hot pluggable

Yes

Daisy chain

Yes, up to 63 devices

Audio signal

No

Video signal

No

Pins

4, 6, 9

Electrical

Max. voltage

30 V

Max. current

1.5 A

Data

Data signal

Yes

Bitrate

400–3200 Mbit/s (50–400 MB/s)

The copper cable used in its most common implementation can be up to 4.5 metres (15 ft) long. Power and data is carried over this cable, allowing devices with moderate power requirements to operate without a separate power supply. FireWire is also available in Cat 5 and optical fiber versions.

The 1394 interface is comparable to USB. USB was developed subsequently and gained much greater market share. USB requires a master controller whereas IEEE 1394 is cooperatively managed by the connected devices.[2]