Questions

The basic expansion card types in A+ Hardware certification are ISA and PCI, ISA these can be used only on XT, AT and ATX boards. The industry now considers ISA obsolate.

While dew , fog and mist are formed due to condensation of vapour into water drops, hail falls from the clouds in the form of hard pellets of ice.

Any two amino acids vary structure by the r-group, otherwise all amino acids are in the same structure. All amino acids have in common carboxyl group -COO , amino group -NH3+ and a hydrogen -H and a r-group which are all bonded to a central carbon.

Ominous is the correctly spelt word in the given options. It means that giving the worrying impression that something bad is going to happen.

The only transport method that can move species against their concentration gradient i.e, from low to high concentration is called Active transport.

Facilitated diffusion only moves species down their concentration gradient i.e, from high to low concentration.

In the thermite process, the reducing agent is Aluminium.

Salinity is often high in enclosed seas, this is due to high temperature, rapid evaparation and little inflow of fresh water.