Source of energy for life on earth
- Main source of energy for life on earth
- Primary source of energy for life on earth
- Ultimate source of energy for all life on earth
- The main source of energy for most life on earth is the
- The main source of energy for all life on earth comes from
- The ultimate source of energy for nearly all life on earth is
- Primary source of energy to sustain life on earth
- The sun is considered the ultimate source of energy for life on earth because
- Source of energy for all life on earth
- Ultimate source of energy for life on earth
- The source of energy for life on earth comes from
- The ultimate source of energy for life on earth is the sun
- Most important source of energy for life on earth
- Main source of energy for all life on earth
- Primary source of energy for most life on earth