Question 1

Select the four statements about Plasmodium that are true. A) Inside an infected mosquito, haploid gametes fuse, forming a diploid zygote that develops into an oocyst B) Plasmodium cells infect two specific types of cells in humans. C) Inside an inf…

Accepted Answer

Plasmodium is a genus of unicellular eukaryotes that are obligate parasites of vertebrates and insects. From the above given options, A, B, E, G are TRUE regarding Plasmodium.

Question 2

Soil erosion can be prevented by

Accepted Answer

The four most common soil erosion prevention methods are vegetation, geotextiles, mulch, and retaining walls. By planting grass in areas of concentrated water flow, farmers can prevent much of the soil erosion that results from runoff, as the grass stabilizes the soil while still providing an outlet for drainage. Preventing soil erosion is critical in protecting your property and exposed soil, whether from wind, weather, running water, and even the after-effects of the forest fire.

Question 3

Fuse Wire is Made of?

Accepted Answer

Fuse Wire is Made of an alloy of Tin and Lead. If too high a current flows, the element rises to a higher temperature and either directly melts, or else melts a soldered joint within the fuse, opening the circuit. Thefuse element is made of an alloy of Tin and Lead to provide stable and predictable characteristics.

Question 4

The Biggest cause of Foodborne Illness is

Accepted Answer

The Biggest cause of Foodborne Illness is Poor Personal Hygiene. Foodborne Illness is caused by consuming contaminated foods or beverages. Many different disease-causing microbes or pathogens can contaminate foods, so there are many different types of foodborne illnesses.

Question 5

A Disease which spreads by contact?

Accepted Answer

A Disease which spreads by contact are Contagious. Infectious diseases : These are caused by microscopic germs such as bacteria or viruses that get into the body and cause problems. Some but not all infectious diseases spread directly from one person to another. Infectious diseases that spread from person to person are said to be contagious. Some infections spread to people from an animal or insect, but are not contagious from another human. Contagious diseases such as the flu, colds, or strep throat spread from person to person in several ways. One way is through direct physical contact, like touching or kissing a person who has the infection. Another way is when an infectious microbe travels through the air after someone nearby sneezes or coughs. Fatal Diseases : Diseases leading to failure or disaster. Incurable Diseases : Diseases of a sick person not able to be cured.

Question 6

Where are the Macronutrients located on a Nutritional Label?

Accepted Answer

Macronutrients are located on the Top of a Nutritional Label. Macronutrients are essential substances that the body needs to survive and develop. There are 3 main Macronutrients: 1. Fats 2. Proteins (and) 3. Carbohydrates. The nutritional label is an important part of any food package. Since the Macronutrients refer to a list of nutrients that we need daily in a pretty large amount are the most important nutrients to sustain our living, commonly they are written on the top of the Nutrition Labels.

Question 7

Eugenics is the study of

Accepted Answer

Eugenics is the study of altering human beings by changing their genetic components. It is the study of the agencies under social control that may improve or impair the racial qualities of future generations either physically or mentally.

Question 8

Which of the following is not an intensive property?

Accepted Answer

An intensive property is a physical quantity whose value does not depend on the amount of the substance for which it is measured. For example, the temperature of a system in thermal equilibrium is the same as the temperature of any part of it. If the system is divided the temperature of each subsystem is identical. The same applies to the density of a homogeneous system, if the system is divided in half, the mass and the volume change in the identical ratio and the density remains unchanged. Additionally, the boiling point of a substance is another example of an intensive property. For example, the boiling point for water is 100 °C at a pressure of one atmosphere, a fact which remains true regardless of quantity.

Question 9

How many Teaspoons in a Tablespoon?

Accepted Answer

Tablespoon > Teaspoon In US & UK, 1 Tablespoon = 3 Teaspoons.

Question 10

What about Earth allows it to maintain bodies of water?

Accepted Answer

The moderate temperatures allow Earth to maintain bodies of water into its normal state. Changes in the bodies of water in terms of volume and structure would change due to the change in temperature.

Question 11

Which of the following is likely during vigorous exercise?

Accepted Answer

During vigorous exercise capillaries of the active muscles will be engorged with blood.

Question 12

Which of the following foods does not support bacterial growth?

Accepted Answer

Cooked food create an enabling environment for bacteria to grow because of their moisture content and because of the normal temperature of the food. Raw food does not offer suitable conditions for bacteria growth. Hence, raw carrots does not support bacterial growth.

Question 13

Cosmetic powders are prepared from

Accepted Answer

Cosmetic powders are prepared from Talc. Face powder is a cosmetic powder applied to the face to set a foundation after application. It can also be reapplied throughout the day to minimize shininess caused by oily skin. There is translucent sheer powder, and there is pigmented powder.

Question 14

The substance which makes natural rubber more strong and bouncy?

Accepted Answer

Sulfur vulcanisation is a chemical process for converting natural rubber or related polymers into more durable materials by heating them with sulfur. By this they achieve improved elasticity, resilience, tensile strength, viscosity, hardness and weather resistance.

Question 15

The outermost layer of the sun is called

Accepted Answer

The outermost layer of the sun is called The Corona. The inner layers are the Core, Radiative Zone and Convection Zone. The outer layers are the Photosphere, the Chromosphere, the Transition Region and the Corona. IRIS will focus its investigation on the Chromosphere and Transition Region.

Question 16

Which is faster Light or Sound?

Accepted Answer

Light travels Faster than Sound. Light : 1. Light doesn't require a medium to travel. 2. It travels in the vaccum with the speed of 1,86,000 miles per second. Sound: 1. Sound rquire a medium. 2. It travels in the Air with the speed of 340 meters per second. 3. It travels Faster in Water than in Air. 4. It travels Faster in Steel than in Water.

General Science Questions