Answer: Ground water recharge includes recharge as a natural part of the hydrologic cycle and human-induced recharge, either directly through spreading basins or injection wells, or as a consequence of human activities such as irrigation and waste disposal. Artificial recharge with excess surface water or reclaimed wastewater is increasing in many areas, thus becoming a more important component of the hydrologic cycle.
Explanation:
https://www.sciencedirect.com/topics/earth-and-planetary-sciences/groundwater-recharge
In the alarm reaction stage
Answer: d. Why do biomes with low rainfall have low biodiversity?
Explanation:
A biome can be defined as naturally occurring community of fauna and flora in a particular region, example forest.
The environment has a major role over the development of biome. The abiotic environmental factors like water, air, soil and others can exert an influence over the biome.
The biomes with low rainfall will influence the growth of plants or floral species in a biome. The biome will experience low plant growth in absence of adequate rainfall the living plant species will die in scarcity of water. Here, rainfall is the environmental pressure.
Based on the above description, option. d is the correct question that a teacher should ask to teach the influence of environmental pressure of a biome.
The answer is; C
Use the Hardy Weinberg equiation for population in assumed equilibrium. ( p+q = 1)
If p = 0.3 then q=1-p = 1-0.3 = 0.7
People who are heterozygous for the disease are represented by 2pq = 2 * 0.3 * 0.7
0.42