Competition between organisms and populations results from which of the following combination of factors?
a. Genetic diversity, limited reproduction, and specialized diet.

b. Poor adaptations, specialized needs, and low birthrate.

c. Geographic isolation, reproductive success, and mutation.

d. Similar needs, limited resources, and overlapping ranges.
Item at position 2

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.

C.25-28.. . .