Sara, a class 9 student was asked to submit a project report on mosquito transmitted disease in school. she visited a nearby hospital where her aunt was staffed as a nurse. her aunt took her to a patient suffering from malaria sara talked to the patient and asked him about symptoms 1. name the causative organism and the vector of the disease 2. name the two symptoms which may have been told by the patient 3. identify an important value shown by sara

Malaria is a disease caused by the Plasmodium parasite (which is a protozoan). These include P. falciparum, P. vivax, P. ovale, and P. malariae. The female Anopheles mosquito transmits the parasite since it feeds on the animal blood for the nourishment of its eggs.  The parasites destroy the red blood cells in the blood.

Symptoms of the disease include; excessive sweating, fever, headaches, vomiting, shivering, occasional seizures. In severe cases, symptoms will include impaired consciousness,  prostration, convulsions, and clinical jaundice.

She showed the value of initiative. Initiative is acting on your own to add value to your work without the request or push from your superintendent (or in this case, the teacher). Sarah makes the extra effort to do her own research into the project. This is rather than asking for mere answers  

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

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the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

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