Peony seeds were placed in dry containers. Some of the containers were stored at 5°C for either 4,6,8 or 10 weeks. The temperature and time periods were defined as the storage temperature and the storage period, respectively.
The peony seeds were divided evenly so that there were 20 sets of 25 seeds. Twenty petri dishes were then
prepared. Each contained damp paper. Each set of seeds was placed in a separate petri dish. Each petri dish was
maintained at 1 of 4 temperatures for 30 days. The temperature and time periods were defined as the germination
temperature and the germination period, respectively. Table 1 shows the number of seeds that germinated in each
dish.
Table 1
Number of peony seeds that germinated when maintained at a germination temperature of:
Storage period (weeks) 13°C 18°C 23°C 28°C
0
0 0
0
4
0 2
0
6
3 8
6 0
8
7 22 18 0
10
15 24 21 1
In general, the results of Study 1 suggest that peony seeds that are placed in a petri dish containing damp paper are
most likely to germinate when they are maintained at which of the following temperatures?

More; less is the correct answer

Mantle convection  is the slow  creepingmotion of earth's solid silicate  mantle  caused by  convection  currents carrying  heat from the interior  to the planet's surface.[1][2]  the earth's surface  lithosphere, which rides atop the  asthenosphere  (the two components of the  upper mantle), is divided into a number of  plates  that are continuously being created and consumed at their opposite  plate boundaries. accretion occurs as mantle is added to the growing edges of a plate, associated with  seafloor spreading. this hot added material cools down by  conduction  and  convection  of heat. at the consumption edges of the plate, the material has thermally contracted to become dense, and it sinks under its own weight in the process of  subduction  usually at an  ocean trench.[3]this subducted material sinks through the earth's interior. some subducted material appears to reach the lower mantle,[4]  while in other regions, this material is impeded from sinking further, possibly due to a phase transition from  spinel  to  silicate perovskiteand  magnesiowustite, an  endothermic reaction.[5]the subducted oceanic crust triggers  volcanism, although the basic mechanisms are varied. volcanism may occur due to processes that add buoyancy to partially melted mantle causing an upward flow due to a decrease in density of the partial melt.secondary forms of convection that may result in surface volcanism are postulated to occur as a consequence of intraplate extension[6]  and  mantle plumes.[7]it is because the mantle can convect that the  tectonic plates  are able to move around the earth's surface.[8]mantle convection seems to have been much more active during the  hadean  period, resulting in gravitational sorting of heavier molten  iron, and  nickel  elements and  sulphides  in the core, and lighter  silicate minerals  in the  mantle.

The proton has a positive charge while the neutron has no charge they both make up the nucleus of the atom while the elections have a negative charge and surround the nucleus of the atom. the protons and electrons are used to calculate the atom's mass whereas the neutrons don't affect the mass

Photo means light and synthesis means combination so combination of light