Answer:
Explanation:
A direct democracy or pure democracy is a form of government wherein the citizens have a direct say in the formulation of laws and issues that affect them while a representative democracy is a form of government wherein its citizens vote for or elect a representative to represent them in Congress or the Senate.
In a direct democracy people vote on policies directly such as the Brexit referendum where people got to directly influence the outcome of the result.
In a representative democracy people vote for representatives who present a particular plan, ideas and policies and ask people to vote for them. Whomever gets the majority vote has a mandate to carry out his policies. In this system the voter does not have direct control over the outcome.
Explanation: Since air has mass, it also has weight. The pressure of air at a given place is defined as a force exerted in all directions by virtue of the weight of all the air above it.
The weight of a column of air contained in a unit area from the mean sea level to the top of the atmosphere is called the atmospheric pressure. The atmospheric pressure is expressed in various units.
Measurement of Air Pressure
Atmospheric pressure is the weight of the column of air at any given place and time. It is measured by means of an instrument called barometer.
The units used by meteorologists for this purpose are called millibars (mb).
One millibar is equal to the force of one gram on a square centimeter. A pressure of 1000 millibars is equal to the weight of 1.053 kilograms per square centimeter.
In other words, it will be equal to the weight of a column of mercury 75 cm high.
The normal pressure at sea level is taken to be about 76 centimeters (1013.25 millibars).
Vertical Variation of Pressure
In the lower atmosphere the pressure decreases rapidly with height.
The answer is "Ecosystem services".
We can simply divide the Ecosystem services into four primary
divisions which are:
1) Provisioning, for example, the generation of nourishment and
water.
2) Controlling, for example, the control of atmosphere and illness.
3) Supporting, for example, supplement cycles and crop
fertilization.
4) Cultural, for example, spiritual and recreational advantages.
The first sentence is referring to a secondary reinforce while
the second sentence is referring to primary reinforce. A primary reinforce are
usually base on biological things such as the water we drink or food that we
eat while the secondary reinforce is base on the conditions that humans is
reinforcing such as money or grades.
