This dichotomous key can be used to identify some conifers. la Leaves are neede-like
1b Leaves are attened and scale-like
2a Leaves are in clusters
2b Single leaves
3a Two to five leaves in a cluster
3b More than five leaves in a cluster
4a Leaves mostly five in a cluster
4b Leaves two or three in a duster
Sa Leaves mostly three in a duster
Sb Leaves mostly two in a cluster
6a Twisted leaves that are less than 13 cm long
6b Straight leaves that are more than 13 cm long
7a Leaves 13 to 25 cm long; thomy cones
7b Leaves mostly over 25 cm long: no thorns on cones
Ba Leaves in clusters of 20 to 40
8b Leaves are stiff and four sided
Sa Needles are short and sharp
9b Needles are longer than 12 mm
10a soft and leathery cones
100 Woody cones
Based on the key, which of these best describes the leaves and cones of the longleaf
pine?

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.

Ican not answer this question since it does not have enough information

Photosynthesisthe process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water.