Question

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Answer:
What is Pressure ?
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Answer 1

Answer:

Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. ... Pressure may also be expressed in terms of standard atmospheric pressure; the atmosphere (atm) is equal to this pressure, and the torr is defined as 1⁄760 of this.

In SI base units: 1 N/m^2, 1 kg/(m·s^2), or 1 J/m^3

Derivations from other quantities:

p = F / A

formula:-$P= \frac{F}{A} </strong><strong>$

P = pressure

F =force

A = area

Common symbols: p, P

Dimension: M L^−1 T^−2

SI unit: Pascal

(✷‿✷) Extra information (✷‿✷)

What are types of pressure?

Answer:-

The different types of pressure are differentiated only by the reference pressure.

• Absolute pressure. The clearest reference pressure is the pressure zero, which exists in the air-free space of the universe. ...
• Atmospheric pressure. ...
• Differential pressure. ...
• Overpressure (gauge pressure) ...

What causes pressure Pressure?

Answer:-

Pressure is caused by the collisions between the atoms of gas and walls of the container as those atoms travel in the confined space. There are three ways to increase the pressure: ... More energy means the atoms will move faster and will collide more often, more collisions more pressure.

Answer 2

Answer:

Parasitic plants germinate and follow a concentration gradient of these compounds in the soil toward the host plants if close enough. These compounds are called strigolactones. Strigolactone stimulates ethylene biosynthesis in seeds causing them to germinate. There are a variety of chemical germination stimulants.

Explanation:

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