Questions

Higher Quality Scores typically result in lower costs and better ad positions. Quality Score is Google's rating of the quality and relevance of both your keywords and PPC ads. It is used to determine your cost per click (CPC) and multiplied by your maximum bid to determine your ad rank in the ad auction process.

Each model of a computer has a unique machine language.

Black  surfaces are good emitters of heat ( They are also good absorbers of heat). If the black surface is rough too, the emitting will be better. So (b) is the correct answer. Shining surfaces reflect back radiation. So if the black surface is also shining the effectiveness of emitting heat is lessened.

Projectile

Founded in 1912, the Kuomintangis the oldest still active political party in the Chinese-speaking world.Its main leader was Sun Yat-Sen. He divided the livelihood into four parts: clothing, food, housing and transportation.

Cretinism is a disease caused by hypothyroidism(less thyroxine formation).The symptoms of the disease are retardation  of mental, physical and sexual developments. Potbellt, protruding tongue, dry skin etc are also indicative of this disease.