Answer:
Which of the following are involved in the cycling of nutrients in nature?
I.Bacteria
II.Plants
III.Earthworms
IV.Humans
Bacteria, Plants and Earthworms
Explanation:
Bacteria, Plants and Earthworms plays vital role im nutrients recycling in nature, earthworm does this during soil burrowing which enables the soil to mix together easily and allow nutrients to circulate. Plants also helps through the practice of mixed cropping and shifting cultivation whereby different plant is planted every year as the case maybe.
The digestive system is made up hollow organs that consists of the mouth, esophagus, stomach, small intestine, large intestine and anus, sequentially. The supplementary organs are the liver, pancreas and the gall bladder.
The food enters first through the (1) MOUTH where mastication or the mechanical breakdown of food particles takes place. After the food is being swallowed it passes through the (2) ESOPHAGUS which is the conduit between the pharynx and (3) STOMACH which secretes acid and enzymes that chemically breaks down food that is termed as chyme. It comprises 10% of the digestion and absorption. The chyme or partially digested food goes to the (4) SMALL INTESTINE where 90% of the digestion and absorption takes place. Its main functions is to absorb the nutrients and minerals from the chyme. (5) The LARGE INTESTINE is where the water from the remaining indigestible food matter is being absorbed. It also transmits the useless waste material from the body where it is excreted through the (6) ANUS
The green house effect is when their is too much pollution in the air. Cars, factories and industries cause a lot of pollution in the air which then causes the ozone to thin out which causes it to get hotter because the ozone is a layer that keeps the temperature not too hot or cold