Explain the cause of salt water getting into the groundwater aquifers near the beach sections of this area of the world. ok this question is fr so i need 2-5 sentences

Needed fast 15 points the process of natural selection favors certain characteristics in organisms, while it selects against other characteristics. what would happen if there was zero variation between all of the organisms on earth? a. organisms would evolve to increase variety b. natural selection would operate faster c. less food would be available d. evolution through natural selection would not occur

Match the following items. 1 1 (4,4) 2. (-4,-2) 3. (3.-6) 4. (-4, 6) 5. (1,5)

What does 2[tex] {2}^{ - 4} \times {2}^{ - 2} [/tex]