A scientist is studying which flower color attracts the most bees. To do this, the scientist releases a group of ten honey bees into a chamber with white walls. The chamber contains potted flowers of the following varieties: yellow daffodils, red roses, white daisies, purple asters, and orange lilies. The results of the experiment is shown in the table below:
Flower Number of Visits in 30 Minutes
yellow daffodils 12
red roses 34
white daisies 19
purple asters 28
orange lilies 30
From the data, the scientist concludes that bees prefer red flowers. Are the scientist's conclusions valid?
A.
No, the honey bees showed relatively the same interest in all of the flowers except the daffodils.
B.
Yes, the honey bees visited the red roses 34 times during the experiment, which was 4 more times than the next popular flower, the orange lily.
C.
Not necessarily; the honey bees may have been attracted to traits other than flower color.
D.
Yes, bees are always attracted to the brightest colored flower, which is why there are very few kinds of white flowers.

a mercury barometer is a device that uses the physical properties of mercury in a tube to measure barometric pressure. mercury barometers are used for : -

1. measurement of atmospheric pressure  

2. determining the altitude of a place

3. weather forecasting

4. calibration and checking of aneroid barometers

5. application in fluid mechanics

6. measurement of pressure in aircrafts

7. surface weather analysis

8. preparation of barographs

9. usage in physical sciences like physics, astronomy & chemistry

10. preparation of aircraft altimeters

characteristics of mercury barometer : -

1.used to define and measure atmospheric pressure.

2.on the average at sea level the column of mercury rises to a height of about 760 mm.

3.this quantity is equal to 1 atmosphere.

4.it is also known as standard atmospheric pressure.

5.a barometer in which the weight of a column of mercury in a glass tube with a sealed top is balanced against that of the atmosphere pressing on an exposed cistern of mercury at the base of the mercury column, the height of the column varying with atmospheric pressure.