In summary, an ecosystem is any community of living and non-living things that work together. Biotic factors are all of the living organisms within an ecosystem. These may be plants, animals, fungi, and any other living things. Abiotic factors are all of the non-living things in an ecosystem.AugTemperature has a direct effect on whether a substance exists as a solid, liquid or gas. Generally, increasing the temperature turns solids into liquids and liquids into gases; reducing it turns gases into liquids and liquids into solids.
Объяснение:
1. They are busy now. They are discussing an important question. - СЕЙЧАС - Present Continuous
2. Listen! Someone is knocking at the door.- СЛУШАЙ, значит, СЕЙЧАС - Present Continuous
3. The man who is smoking a cigarette is our English teacher. - значит, СЕЙЧАС - Present Continuous
4. Ann dislikes foreign food.- нет указателя времени, значит, ОБЫЧНО, Present Simple
5. How do Ann and Peter travel to work? - нет указателя времени, значит, ОБЫЧНО, Present Simple
6. Everybody in the class speaks English.- нет указателя времени, значит, ОБЫЧНО, Present Simple
7. I can’t unlock the door. I have lost my key. - результат: не могу открыть дверь - значит, Present Perfect
8. My friend had changed since I saw him last. - с тех пор, как я видел его в последний раз, значит, Past Perfect
9. Who knows his address? - нет указателя времени, значит, Present Simple
10. These students have passed a few tests this morning. - сегодня утром, значит, УЖЕ - Present Perfect