Questions

The Dhubai Metro(UAE) consists of two driverless lines(Red and Green) that totalled 74.694 km (46.41 miles) when the Greenline was officially opened on 9 September 2011.

Primary productivity refers to plants that make their own food using sunlight, water and availability of nutrients. Hence, they are not limited by time.

The Project Procurement Management processes include the following:

Plan Purchases and Acquisitions - determining what to purchase or acquire and determining when and how.

Plan Contracting - documenting products, services, and results requirements and identifying potential sellers.

Request Seller Responses - obtaining information, quotations, bids, offers, or proposals, as appropriate.

Select Sellers - reviewing offers, choosing among potential sellers, and negotiating a written contract with each seller.

Contract Administration - managing the contract and relationship between the buyer and seller , reviewing and documenting how a seller is performing or has performed to establish required corrective actions and provide a basis for future relationships with the seller, managing contract-related changes and, when appropriate , managing the contractual relationship with the outside  buyer of the project.

Contract Closure - completing and settling each contract, including the resolution of any open items, and closing each contract applicable to the project or a project phase 

The principal quantum number is the property of an electron which determines the energy of electron and the distance of electron from the nucleus of an atom.

ATP - Adinosine Triphosphate is the compound that directly provides energy for cellular work.

A chemical bond in which the electrons are not shared equally due to differences in the electronegativity of the atoms.

The polarity of a covalent bond is measured using its dipole moment.

 Large dipole moment = more polar

 Small dipole moment = more nonpolar.