All of the following help to explain the President’s difficulty in controlling cabinet-level agencies EXCEPT:
A. Agency staff often have information and technical expertise that the President and presidential advisers lack
B. The President can only fire appointees before they have been confirmed by the Senate
C. Civil servants who remain in their jobs through changes of administration develop loyalties to their agencies
D. Congress is a competitor for influence over the bureaucracy
E. Agencies often have political support from interest groups

B. The President can only fire appointees before they have been confirmed by the Senate

Explanation:

The Appointments Clause confers plenary power on the President to nominate various officials. It also confers plenary power to the Senate to reject or confirm a nominee, through its advice and consent provision. This separation of powers between the President and Senate is also present in the treaty Clause of the Constitution, which gives international treaty-making power to the President, but attaches to it the provision of the Senate's advice and consent.

uses : -

1.aneroid barometers primarily measure whether pressure is rising or falling.

2.aneroid barometers are often used for reading pressure in homes and recreational boats.  

3.other uses may include barographs in meteorology and altimeters in modern aircraft.  

4.this type of barometer can announce whether a high or low pressure system is coming or whether it is becoming more intense.  

5.there are different types of aneroid barometers, such as the altimeter, which measures altitude, or distance above sea level.  

6.another example is a barograph, which is a modified aneroid barometer that provides constant readings of atmospheric pressure on graph paper.  

7.when used in this capacity, the aneroid barometer can store a week's worth of data.

android diameter a device for measuring atmospheric pressure , often specially calibrated for use as an altimeter ,consisting of a box or chamber partially exhaused of air, having an elastic top and a pointer to indicate the degree of compression of the top caused by the external air

refer to the attachment for the characteristics : -

raliegh, north ! hope this