Questions

The four main functions of a computer are ::

1. Input,

2. Processing,

3. Output and

4. Storage

Appetite is the desire to eat food, sometimes due to hunger. Appetite is triggered by environmental cues such as the smell or taste of food. Appealing foods can stimulate appetite even when hunger is absent.

Rishikesh is a city in India’s northern state of Uttarakhand. As the city is renowned as a center for studying yoga and meditation it is called as Yoga city in India.

The major greenhouse gases (GHG’s) solely responsible for greenhouse effect are Carbon dioxide, Ozone, Methane and Water vapor. Although these gases comprise 1% of our atmosphere, they act like a thick warm blanket outside that surrounds this planet and regulate climate control. Greenhouse effect is not bad. In fact, it is needed for all of us to survive on planet Earth. In short, the greenhouse effect is nothing but a naturally occurring process designed by nature that aids in heating earth’s surface and helps to maintain ecological balance.

Now, while some of that heat dissipates into space, some of it burns along the atmosphere, and some of it penetrates the atmosphere and finds its way into the lower atmosphere and the planet’s surface. This in turn raises the average temperature of the Earth. Therefore, the increase in the Earth’s surface temperature due to increase in the number of greenhouse gases leads to global warming.

Causes of Green House Effects ::

* Burning of Fossil Fuels

* Deforestation 

* Increase in Population

* Farming

* Industrial Waste and Landfills.

There are three types of buses.

Address bus: This is used to carry the Address to the memory to fetch either Instruction or Data.

Data bus: This is used to carry the Data from the memory.

Control bus: This is used to carry the Control signals like RD/WR, Select etc.

Echolocation is an adaptation bats use to hunt insects in flight, locate flowering plants and find warm places for hibernation.

Eugenics is the study of altering human beings by changing their genetic components.

It is the study of the agencies under social control that may improve or impair the racial qualities of future generations either physically or mentally.