Plural Nouns

A covalent bond involves a sharing of electrons between atoms. Each atom contributes one or more electrons to the bond, resulting in a stable electron configuration for both atoms. This sharing allows the atoms to have a full outer shell of electrons, making the bond strong and stable.

Yes, californium is highly radioactive and can be very toxic due to its radioactivity. It can pose serious health risks if not handled properly.

The production of light by a lamp is a physical change. It involves the conversion of electrical energy into light energy through a process that does not alter the chemical composition of the materials involved.

40mT means 40 milli Tesla. A Tesla is a derived unit in the SI system of measures, and is a measure of magnetic field strength. The quantity given is rather small, but would be equal to that of a handful of fridge magnets. The Earth's magnetic field is about 30 micro Tesla.

well, I think it is oxygen itself.....i have heard my teachers say "it needs a lot of oxygen to work".i haven't heard anybody say 'oxygens'or any other ways

It's just "rice," as in "I eat a lot of rice."

The correct plural form of "stimulus" is "stimuli."

"Lens" is both singular and plural.

"Stationary" is typically considered singular when referring to the category of writing materials. It can also be used as a collective noun for all writing materials as a group.

No, hippos are herbivores and primarily eat grasses and aquatic plants. They do not consume meat.

The noun 'physics' is an uncountable noun, a type of aggregate noun, a word representing an indefinite number of elements or parts.
The noun 'physics' takes a verb for the singular: Physics is my major.

The plural of "glass" is "glasses."

Moss does not have fur as it is a simple, non-vascular plant that lacks complex structures like hairs or fur. Moss absorbs water and nutrients through its leaves and stems, using tiny structures called rhizoids to anchor itself to a surface.

Items of clothing placed in a dryer by themselves build up either a negative charge or a positive charge depending on the material of which they are made. Or not charge at all in some cases. A pair of socks, being made of the same material, will build up a charge of the same polarity (either both positive or both negative) and will therefore repel each other. Incidentally, the clothes become charged when they rub together. Electrons 'rub off' some of the clothes, so that they become positively charged, onto other clothes, so that they become negatively charged. If you have ever stroked a cat and then got a slight shock it's the same effect.

Fogs is the proper plural form of fog. However, fog is also commonly accepted as a standing plurality of its root on its own and is used more frequently than fogs.

There is none.

Nouns like news are plural in form but singular in meaning, including sciences such as mathematics and physics. News always uses a singular verb.

"Nucleus" is a singular noun. The plural form is "nuclei".

"Lights" is plural. The singular is "light." As a noun, the word "light" can refer to something you turn on to brighten a room, or it can refer to brightness in the sky. Here is an example of the plural: When we had a hurricane last year, the lights went out everywhere on our street. The singular is like this: Please turn on the front porch light so that we can see where we are going.

You can say the chair is wobbling if it is unstable and moves or shakes when someone sits on it or when pressure is applied. You can also check for loose screws or legs that are not properly aligned as common causes of wobbling.

The two plurals of "vortex" are "vortexes" and "vortices".

Yes, salmon have a brain. Their brains are relatively small compared to their body size but are still important for basic functions like sensing their environment, navigating, and making decisions.

To stop a chair from squeaking, try tightening any loose screws or bolts, lubricating the moving parts with WD-40 or a silicone spray, or placing felt pads between any metal parts that may be rubbing together. If the squeaking persists, consider replacing any worn-out parts or cushioning.

Almost certainly, because it's blocked. This could be as a result of masonry becoming dislodged from between the bricks, because a bird has built a nest up there, because a storm has blown debris into the chimney, or a number of other reasons.

My advice is to get it swept and cleared, as a blocked chimney can be dangerous and catch fire- but check that any nesting birds will not be harmed in the process!!

The plural of thylakoid, referring to a membrane which contains chlorophyll, is thylakoids.