Question
What resource does Earth receive directly from outside the
planet rather than from natural resources?Solution
Energy, particularly solar energy from the Sun, is the only resource listed that comes directly from outside Earth rather than from the planet's natural resources. The Sun provides solar radiation that powers life on Earth, supports photosynthesis in plants, and drives weather patterns, ocean currents, and the water cycle. Other forms of energy from space include cosmic radiation, though it's not harnessed as efficiently as solar energy. In contrast, minerals, coal, and natural gases are all extracted from within Earth's crust.
45Â Â Â Â 45.5Â Â Â Â Â Â 47 Â Â Â Â Â Â 49.5Â Â Â Â Â Â 53 Â Â Â Â Â Â ?
...What value should come in the place of (?) in the following number series?
56, 28, 28, 42, 84, ?
32   48   96   ?   720   2520
18, 37, 60, ?, 120, 157
What will come in place of the question mark (?) in the following series?
25, 25, 5, 10, 2, ?
?, 6, 6, 9, 18, 45
30          162        344        ?             890        1270
...155, 157, 160, ?, 172, 183
What will come in place of (?) Question mark in the given number series.
1, 2, 5, 14, 41, 122, ?
In each of the following number series, one term is missing. Find the missing term.
7, 14, 28, 56, 112, ?
