Q4. Answer in one sentence. 4
1.Which water contains poisonous substances?
2.What harm do traffic accidents cause?
3.When can nature take care of us?
4.What is communication?
Answers
Answer:
4) Talking to each other is called communication
1. Heavy metals (lead and mercury)
Lead is released in water due to old corroded water pipes. It is toxic to almost every organ and affects children the worst. It can cause problem in the development of children, learning disabilities, brain damage etc. If ingested during pregnancy, it can cause premature birth.
2. A vehicle moving on high speed will have greater impact during the crash and hence will cause more injuries. The ability to judge the forthcoming events also gets reduced while driving at faster speed which causes error in judgment and finally a crash.
3. While COVID-19 (Coronavirus) has resulted in many countries across the globe to enter nationwide lockdowns to halt the spread of the virus, one positive outcome of this has been a notable reduction in pollution around urban centres, as well as positive benefits for wildlife. But as many countries start to open up again, and normal travel, industry and activity resumes, what does this mean for the environment? Recognizing the positive impact reduced pollution has had on climate change, four IB students, current and former, as well as a non-IB student from across the globe have joined forces over the past few months to create an original story, ‘Am I Finally Free’, which highlights the importance of taking care of mother nature, and reminds citizens to make informed choices for a sustainable development.
4. Communication is the act of conveying meanings from one entity or group to another through the use of mutually understood signs, symbols, and semiotic rules. The main steps inherent to all communication are: The formation of communicative motivation or reason. Message composition. Message encoding.
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