Explanation We can measure our blood pressure on our own using a digital blood pressure monitor for automated readings or an instrument called a  sphygmomanometer  for manual readings. A sphygmomanometer  also known as a blood pressure monitor , is a device used to measure blood pressure.

Explanation Oxygen makes up about 65% of the human body by weight/mass. It mainly due to its presence in water and organic compounds. It is essential for respiration and various biochemical processes in the body.

Explanation An ammeter is a device specifically designed to measure electric current (in amperes).

Explanation Generally, objective case comes after a preposition. Examples:examples :   I know about him. “He” is the subjective case while “him” is the objective case. "About" is the preposition here.

Explanation Articles "A" and "AN" are used with some expressions. For example: Make a noise, give a warning, have a pain, have a great education etc.

Explanation Preposition connect the words

Explanation We use since from a particular time in the past until a later time, or until now.

Explanation   for is used with a period of time. Since is used to refer to a specific point in time.

Explanation This is a conditional sentence which means اگر آپ بس پر جائیں گے تو آپ کو دیر ہوجائےگی۔

Explanation This is a simple sentence of Present Indefinite Tense. Present Indefinite Tense Active Voice: Subject + Verb + Object Passive Voice: Object + is/am/are+ third form of a verb + by + subject. Explanation Explanation Explanation Generally, objective case comes after a preposition. Examples:examples :   I know about him. “He” is the subjective case while “him” is the objective case. "About" is the preposition here. Explanation Articles "A" and "AN" are used with some expressions. For example: Make a noise, give a warning, have a pain, have a great education etc. Explanation Preposition connect the words Explanation We use since from a particular time in the past until a later time, or until now. Explanation   for is used with a period of time. Since is used to refer to a specific point in time.  Explanation This is a conditional sentence which means اگر آپ بس پر جائیں گے تو آپ کو دیر ہوجائےگی۔ Explanation roomy وسیع