בכלכלה מעגלית משתמשים במיחזור טקסטיל.

Because it is an adjective agreeing with כלכלה.

• כלכלה is a feminine singular noun.
• Hebrew adjectives usually match the noun in gender and number.
• So the adjective appears in its feminine singular form: מעגלית.
• The masculine singular form would be מעגלי.

So כלכלה מעגלית is an example of normal noun–adjective agreement.

The prefix ב־ is the preposition in / at / with / by means of, depending on context.

In this sentence:

• בכלכלה = in an economy / in the economy
• במיחזור = with recycling / by means of recycling

Hebrew often attaches short prepositions directly to the following word, instead of writing them separately.

This is very common in Hebrew. משתמשים is the masculine plural present-tense form of להשתמש.

Even without an explicit subject, Hebrew often uses the plural form to mean something like:

• people use
• one uses
• it is used in a general, impersonal sense

So here the idea is not necessarily they in a specific sense. It is more like a general statement about what people do.

It is active, not passive.

The verb is from להשתמש = to use.
So משתמשים literally means they use / people use.

Hebrew often uses this active plural form where English might prefer a more impersonal wording. So even if the English translation sounds passive or general, the Hebrew form itself is active.

Because the verb להשתמש requires the preposition ב־ for the thing being used.

So in Hebrew you do not normally say:

• משתמשים מיחזור ✘

You say:

• משתמשים במיחזור ✔

This is different from English, where use takes a direct object directly. In Hebrew, the pattern is:

• להשתמש ב־... = to use ...

No, טקסטיל is a noun, not an adjective.

Here מיחזור טקסטיל is a noun phrase meaning textile recycling or recycling of textiles. Hebrew often puts two nouns together in technical or formal expressions like this.

So:

• מיחזור = recycling
• טקסטיל = textile / textiles / textile material, depending on context

The second noun specifies what kind of recycling is meant.

Because טקסטיל is not being marked as a direct object here.

There are two reasons:

• The verb להשתמש normally works with ב־, not with a direct object.
• טקסטיל is part of the phrase מיחזור טקסטיל, not a separate direct object of the verb.

Also, את is only used before a definite direct object, and that is not what is happening here.

Yes. משתמשים is present tense.

In Hebrew, the present tense often covers ideas that English expresses as:

• simple present: people use
• habitual present: people generally use
• sometimes even a general factual statement: is used

So here it describes a general practice, not a one-time event.

Because Hebrew word order is flexible, and the sentence begins with the context: in a circular economy.

Starting with בכלכלה מעגלית helps frame the statement before telling you what happens in that context. It is a natural way to organize information.

A different word order is possible, but the given order emphasizes the setting first.

Yes, טקסטיל is singular in form, but it can still refer to the general category of textile material.

That is normal in Hebrew, especially in formal or technical language. English does something similar in phrases like:

• textile recycling
• metal processing
• paper production

So the singular-looking form does not necessarily mean just one item of textile. It can refer to the material or category as a whole.