Downwind or crosswind of the spot where you expect to see your quarry because your scent will be carried at ground level and downwind of your blind
Away from the sun
Where the foreground and background are safest
when hunting from a ground blind, it is especially important to use camouflage face makeup or camouflage head nets and gloves.
weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall
erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.
here's your answer.
sex cells are usually half's then they find another half and make a fertilize egg