Julie wanted to know if adding calcium fertilizer to tomato plants will prevent a disease of tomato plants called blossom-end rot. she used 10 tomato plants. she put 5 plants in a sunny part of the garden and gave each one calcium fertilizer once a week. she placed the other 5 plants in a shady part of the garden and gave them calcium fertilizer twice a week—she thought that since they were in the shade they might need more fertilizer. she then observed the 10 plants for 3 months to see if the fertilizer prevent blossom-end rot. identify and explain one weakness in julie's experimental design.
Answers: 1
Physics, 22.06.2019 11:30, Gigglygoose4181
1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.
Answers: 1
Physics, 23.06.2019 00:50, brysonsandridge69041
Which sentences describe point source pollution? in this type of pollution, the source of the pollution is single and easily identifiable. when runoff water from the melting of snow mixes with debris, it creates pollution. the runoff water, mixed with pollutants, reaches large areas with disastrous effects. alternatively, when a wastewater treatment plant releases harmful chemicals into a stream, the chemicals pollute the stream water because they are not treated for safety.
Answers: 2
Julie wanted to know if adding calcium fertilizer to tomato plants will prevent a disease of tomato...
Mathematics, 10.08.2021 22:00
Computers and Technology, 10.08.2021 22:00
Business, 10.08.2021 22:00
Computers and Technology, 10.08.2021 22:00