D. All of the above. Groundwater is one of our most important sources of water for irrigation and is polluted by many man-made factors which permeate through the ground.
Answer:
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Oxygen is absorbed by the blood in the capillaries that surround the alveoli
There are some environmental factors of which organisms
respond to in order to maintain balance in its course of life, the factors or
stimuli that they respond to are the following, weather, temperature, air,
water and other organisms living in the area or other areas.
Answer:
magnification : objective lens × eyepiece lens
60x × 20× = 1200×