Quick Answer: How Do You Spell Harmful?

What is the example of harmful?

The definition of harmful is something that causes damage or is able to be hurtful.

A chemical that causes you to become sick is an example of a chemical that would be described as harmful.

Causing or able to cause harm; hurtful..

What are useful materials?

Examples of useful materials / list of useful materials:any fabric.tissue paper.table napkins.table towel.water.fire extinguisher.medical kit.medical supplies.

Why do we need materials?

From stone and bronze to steel and concrete, materials are useful for a particular purpose because they behave in a certain way under certain conditions: they have particular qualities, which we call their properties. Understanding these properties is what materials science is all about.

How can I reduce chemicals in my life?

10 Steps to Avoid Toxic ChemicalsMake Your Own Cleaning Products. … Avoid Fragrance. … Give Your Personal Care Products a Makeover. … Go “BPA-Free” … Quit the Quats. … Choose Alternatives to Plastics (where possible) … Keep Harmful Chemicals Out of the House. … Turn Down the Heat on Non-Stick Cookware.More items…

What does detrimental mean in English?

obviously harmful: obviously harmful : damaging the detrimental effects of pollution. detrimental. det·​ri·​men·​tal | \ ˌde-trə-ˈmen-tᵊl \ Definition of detrimental (Entry 2 of 2) : an undesirable or harmful person or thing.

How do you spell unhealthy?

adjective, un·health·i·er, un·health·i·est.symptomatic of or resulting from bad health: an unhealthy pallor.not conducive to good health; unhealthful: Night air was formerly considered unhealthy.morally bad, harmful, or contaminating: unhealthy examples for the young.More items…

What are the 4 types of materials?

In general, materials that widely used in this universe are divided into 4 types, which are Metal, Polymers, Ceramic and Composite. There are plenty of manufacturing processes that have been developed to form a product.

What chemicals are toxic to humans?

What are ten of the most dangerous chemicals?Batrachotoxin isn’t very good for you. … Chlorine trifluoride is highly corrosive. … Potassium cyanide has killed some notable people in the past. … VX is used in chemical weapons. … Botulinum toxin A, also known as Botox. … Ricin is pretty nasty. … Sarin will kill you in minutes.More items…•

What kind of hazard is poisonous?

Toxic materials are substances that may cause harm to an individual if it enters the body. Toxic materials may enter the body in different ways. These ways are called the route of exposure. The most common route of exposure is through inhalation (breathing it into the lungs).

What is highly toxic material?

Very toxic materials are substances that may cause significant harm or even death to an individual if even very small amounts enter the body. These materials may enter the body in different ways (called the route of exposure). The most common route of exposure is through inhalation (breathing it into the lungs).

What is the opposite of harmful?

(harmless) Opposite of likely to injure or damage. harmless. safe. innocuous. painless.

Is harmfulness a word?

adj. Causing or capable of causing harm; injurious. harm′ful·ly adv. harm′ful·ness n.

Which materials can be harmful?

You may encounter harmful materials not mentioned here….This isn’t an exhaustive list.Asbestos-containing materials (ACM) … Mercury-containing devices.Lead-based paint.PCBs in caulk.Household hazardous waste.Light systems. … Mold.Refrigerant-containing appliances.More items…

What are the most used materials?

Concrete. If you ask most people what the most commonly used material is, they might say wood, or steel, or aluminum. The correct answer is actually concrete, which is used in larger quantities than the combined weight of all metals used in a year.

What is a harmful?

: of a kind likely to be damaging : injurious.

How many toxins are we exposed to daily?

Modest estimates have suggested that we are exposed to more than 700,000 different toxic chemicals on a daily basis, and this doesn’t include the crazy poisons that GMO companies are pumping into the food supply. According to Global Healing Center, it isn’t abnormal to be exposed to 2,100,000 toxins each and every day.

What is highly toxic?

Highly toxic is defined by OSHA as: A chemical that has a median lethal dose (LD50) of 50 milligrams or less per kilogram of body weight when administered orally to albino rats weighing between 200 and 300 grams each.

What is the meaning of apologize?

intransitive verb. : to express regret for something done or said : to make an apology He apologized for his mistake. She apologized to us for losing her temper.