Questions

Muhammad had to leave Mecca his birth place where he started preaching and take refuse in Medina, where he was given a warm welcome. This event took place in AD 622 and is known as the year of the Hijira, or migration, which became the first year of the Muslim Calendar.

The Integrative Project Management Processes include:

Develop Project Charter - Developing the project charter that formally authorizes a project or a project Phase.

Develope Preliminary Project Scope Statement - Developing the preliminary project scope statement that provides a high level scope narrative

Develop Project Management Plan -  Documenting the actions necessary to define, prepare, integrate, and coordinate all subsidiary plans into a project management plan.

Direct and Manage Project Execution- Executing the work defined in the project management plan to achieve the project's requirements defined in the project scope statement.

Monitor and Control Project Work - Monitoring and controlling the processes used to initiate, plan, execute, and close a project to meet the performance objectives defined in the project management plan.

Integrated Change Control - Reviewing all change requests, approving changes, and controlling changes to the deliverables and organizational process assets.

Close Project - Finalizing all activities across all of the Project Management Process Groups to formally close the project or a Project phase.

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.

A Mirage is a naturally occurring optical phenomenon due to unequal heating of different parts of the atmosphere in which light rays bend to produce a displaced image of distant objects or the sky.

The USSR( now a Common Wealth of Independent States) is spread over Europe and Asia