Answer: B) Silence Explanation:

Answer: D) All the above Explanation: Carbohydrates, together with lipids, proteins and nucleic acids, are one of the four major classes of biologically essential organic molecules found in all living organisms. They not only provide energy for vital metabolic reactions but also supply the building materials for normal structure, growth and repair. Your body needs relatively large quantities of carbohydrates, fats and protein for optimal function, hence their classification as macronutrients.

Answer: A) Economic resources are limited. Explanation: Economic resources are those goods and services that can be converted into valuable products for individual and business purposes. There are four major types of economic resources: 1. land, 2. labor, 3. capital and 4. entrepreneurship.   Land and labor are natural and human resources, while capital means physical resources or money. Entrepreneurship converts these resources into usable goods.   However, resources have finite values, and proper utilization depends on economic systems and economic decisions.

Answer: B) Hello Explanation: Orkut’s creator Buyukkokten has launched a new social network called Hello, which is available on mobile only. The Hello.com app is available on Android and iOS in the following countries: US, Canada, Britain, France, Australia, Brazil, Ireland. Germany, Mexico and India are next on the list and the app should be available this month.

Answer: A) Bangalore Explanation: Bengaluru has became the second city in the country, and the first in south India, to have a full-fledged Metro rail in operation following the opening of a final 12-km section of the 42-km first phase of the Metro project. The first phase, comprising an 18-km east-west line and a 24-km north-south line, built at a cost of Rs 13,845 crore, was dedicated to the nation by President Pranab Mukherjee at an event in Bengaluru.

Answer: A) to make and pass laws at the state level Explanation: Each state in the U.S. has a state legislature. The state legislatures main purpose is to make and pass laws at the state level.   An integral part to each state government - indeed where the people of each state are best represented - is the state legislature.   State legislatures are the respective representative bodies for the people of each state. The primary responsibility of any state legislature is to design, draft, and vote on bills and laws to govern each state. Bills and laws generally go through several committees prior to being voted on in the entire assembly, through which the bills and laws are changed, amended, or killed altogether.

Answer: C) Russia & USA Explanation: United States and Russia have together almost 400 billion tones. Which represents nearly 50% of world's reserves of coal.

Answer: B) Only B is sufficient Explanation: From statement B,  As the value of L = 0, the value of KL = 0. Hence only statement B is sufficient.