Ground water contaminants, like methane, arsenic, and salt may occur naturally in ground water. Ground water accounts for 95% of the liquid freshwater on Earth, but having enough accessible ground water can be a problem. Ground water typically moves slowly within the ground through porous rock layers like the sandstone.
The correct answer to the question Which of the following was an early realization that gave rise to Darwin's theory of natural selection? is D The earth and its organisms have changed through time.
Answer: 1. True
2. Between six and right hours
Explanation:
1. Energy simply refers to the ability to do work. It's the strength that's required to be able to sustain a mental or physical activity.
It should be noted that fir positive interaction, energy requires physical activity, a balanced diet, adequate sleep, satisfying work and opportunities. Therefore, the statement is true.
2. Even though the hours of sleep that's used by people typically varies, adults generally need about six to eight hours of sleep.
The are also called Continental Plates, or Continental Drifts.
Answer: Because "all wildflowers in a meadow" consist of many different species of wildflowers.
_________________________________________________________________