Answer the following question:(any 5)
1. What is a tsunami? What gives rise to a tsunami?
2. List the causes of diminished soil fertility. (6 points)
3. Explain any 3 food preservatives methods
4. Explain the various steps of nutrition in animals.
5. Explain the need for accurate measurement and the devices to be used for that.
6. How can plants like acacia and cactus live in deserts with scarce water?
Answers
Answer:
1 answer =A tsunami is a series of large waves generated by an abrupt movement on the ocean floor that can result from an earthquake, an underwater landslide, a volcanic eruption or - very rarely - a large meteorite strike. However, powerful undersea earthquakes are responsible for most tsunamis.
2answer = Erosion, compaction, nutrient imbalance, pollution, acidification, water logging, loss of soil biodiversity and increasing salinity have been affecting soil across the globe, reducing its ability to support plant life and so grow crops.
3 answer = food preservation, any of a number of methods by which food is kept from spoilage after harvest or slaughter. ... Among the oldest methods of preservation are drying, refrigeration, and fermentation. Modern methods include canning, pasteurization, freezing, irradiation, and the addition of chemicals.
Explanation:
4 answer = There are five steps in the process of Nutrition in animals. These are: Ingestion, Digestion, Absorption, Assimilation and Egestion. ... Assimilation: is the process in which the absorbed food is taken in by the body cells and used for energy, growth and repair. Blood carries the absorbed food to all the parts of the body.
5 answer = The devices used for accurate measurement are: ... For mass measurement, electronic balance can be an accurate device. For length measurement, ruler or measuring tape can be the accurate devices. For temperature measurement, thermometers can be an accurate device.
6 answer = Plants like cactus and acacia are able to survive in desert places because of the special features they contain. They have got needle like leaves which reduces the rate of transpiration rate hence plants are able to store the little water for a long period of time. They have got thick stems for storage of water
please mark me as a branlist
1.
ans Tsunamis are caused by violent seafloor movement associated with earthquakes, landslides, lava entering the sea, seamount collapse, or meteorite impact. ... Note that 72% of tsunamis are generated by earthquakes. A disturbance that displaces a large water mass from its equilibrium position can cause a tsunami.
2.
ans Erosion, compaction, nutrient imbalance, pollution, acidification, water logging, loss of soil biodiversity and increasing salinity have been affecting soil across the globe, reducing its ability to support plant life and so grow crops.
3.
ans Among the oldest methods of preservation are drying, refrigeration, and fermentation
4.
ans There are five steps in the process of Nutrition in animals. These are: Ingestion, Digestion, Absorption, Assimilation and Egestion. ... Assimilation: is the process in which the absorbed food is taken in by the body cells and used for energy, growth and repair. Blood carries the absorbed food to all the parts of the body
5.
ans The devices used for accurate measurement are: ... For mass measurement, electronic balance can be an accurate device. For length measurement, ruler or measuring tape can be the accurate devices. For temperature measurement, thermometers can be an accurate device.
6.