44.By what process do plants breakdown food? a. Chlorophyll b. respiration c. ph
ID: 290883 • Letter: 4
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44.By what process do plants breakdown food? a. Chlorophyll b. respiration c. photosynthesis d. digestion 45.What is a species that can breakdown dead organisms called? a. Producer b. first producer c. second producer d. decomposer 46.Ultimately, all of the energy in all life cycles on land originally came from (one word) 47. In what phase of the water cycle does rain fall? a. Freezing b. Evaporation c. Precipitation d. Collection 48. In the rock cycle, which kind of rocks are made from rocks that undergo heat and pressure? a. Igneous rocks b. Sedimentary rocks c. Minerals d. Metamorphic rocks 49. Why does the earth move and what is the movement called? 50. Plants need nitrogen in order to grow. Nitrogen in the air is not usable by plants. What is the most common process by which nitrogen is made available to plants? a. Photosynthesis b. Breakdown of water c. Lightning d. Bacterial actionExplanation / Answer
44, Plants use Sunlight and synthesize food for themselves, thus plants breakdown food by PhotoSynthesis which means synthesis of light.
45. Decomposers such as fungi, bacteria nad invertebrates like earthworms and insects breakdown the cells and other structures that made up any living organism and release nutrients like nitrogen and phosphorous.
46. Sun, even the planets of the Solar system are believed to have been formed from materials that broke off from the sun about 4.5 billion years ago.
47. Precipitation is the primary connection that provides for the delivery of atmospheric water to the Earth. When the cloud droplets are large enough for precipitation we get rain. Precipitation is basically the condensation of atmospheric water vapor.
48. Metamorphic rocks are rocks that are subjected to high Pressures and temperatures.
49. Momentum is the tendency for things to move. Similarly, when the Earth formed out of a nebula that collapsed and began rotating to preserve the angular momentum gained at the time of collapse of the nebula.
Thus the Earth rotates for preservation of angular momentum gained at the time of formation and the movement is called Rotation.
50. Nitrogen is a crucial component for all life as it is an important part of many cells and processes such as amino acis, proteins and even our DNA. Nitrogen is needed to make chlorophyll in plants, which is required for photosynthesis.
Bacterial action: The N2 gas diffuses into the soil and bacteria converts this nitrogen to ammonium ions (NH4+), which are used by plants.
Lightning converts atmospheric nitrogen into ammonia and nitrate NO3 tha enter the soil with rainfall.
However the most common process is Bacterial action.
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