Questions

Secondary pollutants include ozone, which is formed when hydrocarbons (HC) and nitrogen oxides (NOx) combine in the presence of sunlight.

Whereas Primary pollutant are those pollutants that are directly emitted from their sources, like CO2, CO, SO2 as these gases are directly emitted form burning of fossil fuels.

Acid rain, which is formed when sulfur dioxide or nitrogen oxides react with water, sulfuric acid etc.

Hence, Acidrain is a secondary air pollutant.

Higher Quality Scores typically result in lower costs and better ad positions. Quality Score is Google's rating of the quality and relevance of both your keywords and PPC ads. It is used to determine your cost per click (CPC) and multiplied by your maximum bid to determine your ad rank in the ad auction process.

Inbound Marketing :

     Inbound marketing refers to marketing activities that bring visitors in, rather than marketers having to go out to get prospect's attention.

1. Communication is interactive and two-way.

2. Customers come to you via search engines, refferals and social media

3. Marketers provide value

4. Marketers seek to entertain and/or educate

5. It is a cheaper way of marketing

6. It is the new trend in marketing

7. People are more in control of what information they receive and how

Outbound Marketing

    In Outbound marketing the company contacts the customer through a message. It uses offline methods such as trade shows, mails to customers and calling customers.

1. Communication is one-way.

2. Customers are sought out via print, TV, radio, banner advertising and cold calls.

3. Marketers Provide little to no added value.

4. Marketers rarely seek to entertain or educate.

5. It is expensive compared to inbound marketing

6. It is one of the traditional methods of marketing.

7. In outbound marketing company is in control.

The HF band is based on frequencies 3 to 30 Mhz. AM radio stations are in the HF band but normally are stated in kilohertz.

Seawater or salt water is water from a sea or ocean.

On average, seawater in the world's oceans has a salinity of approximately 3.5% or 35 parts per thousand. This means that for every 1 litre (1000 mL) of seawater there are 35 grams of salts dissolved in it.

Hence, The average salinity of seawater is 3.5%.

A relationship.