a. What makes up an ecosystem? b. Why do we need to protect the Earth from pollution? c. What can the effect of pollution be? d. What is an ecosystem? Is it possible to change an ecosystem? f. Are people the only ones who disturb the balance of the environment? e.​

A. The ecosystem includes a complex of living (biotic) and non-living (abiotic) elements, habitat and their interaction with each other to create a continuous cycle of substances and energy

B. Nature needs protection, because man pollutes and destroys it and can cause irreparable harm to it. As an example, waterlogging and salinization of soils, pollution with oil products, radioactive waste and landfills.

C. 1.Physical pollution includes thermal (thermal), light, noise, vibration, electromagnetic, and ionizing pollution.

2.Light pollution is a violation of the natural illumination of the environment. Leads to disruption of the rhythms of activity of living organisms. Increasing water turbidity in water bodies reduces the flow of sunlight to the depth and photosynthesis of aquatic vegetation.

3.Noise pollution. Sound – as a physical phenomenon, is a wave motion of an elastic medium. Noise – any kind of sounds that interfere with the perception of useful sounds or break the silence. The sound frequency range that the human ear perceives is from 16 to 20,000 Hz. Sound waves with a frequency below 20 Hz are called infrasonic, and above 20,000 – ultrasonic.

D. 1.An ecosystem or ecological system is a biological system (biogeocenosis) consisting of a community of living organisms (biocenosis), their habitat (biotope), and a system of connections that exchange substances and energy between them. One of the main concepts of ecology. An example of an ecosystem is a pond with plants, fish, invertebrates, microorganisms that make up the living component of the system, and a biocenosis. The pond as an ecosystem is characterized by bottom sediments of a certain composition...2.Changes made in one component of the ecosystem can lead to adverse consequences in the functioning of the entire ecosystem. Intelligent human activity is not always able to foresee the consequences of its activities.

F. Violation of the ecological balance between natural factors and human activity is a socio-ecological crisis. This means that the balance between the environment and society is broken. This situation can lead to the death of humanity

1

В complex object после глаголов физического восприятия частица to не употребляется.

2

a) 1. My parents want me to know English.

   2. They want me to revise English words before going to bed.

   3. The don't want me to be lazy.

   4. I want you to meet my parents. но естественнее звучит  I'd like you to meet my parents.

b) 1. I watched my father working on the computer.

   2. I saw my mother baking pies.

   3. I saw an old woman getting on the bus.

3

1) enjoy, 3) give up, 4) go on

4

1) My hobby is drawing. My mother's hobbies are reading and knitting.

2) I'm sorry to interrupt you.

3) Would you mind saying it again?

4) What is worth visiting in your town?

5

1) It needs cleaning.

2) It needs cutting.

3) It needs washing.

6

1) She enjoys watching TV.

2) We like to listen to classical music.

   We like listening to classical music.

3) I am fond of reading.

4) He is interested in learning languages.

1. В complex object после глаголов не испоьзуется частица to.

2.

a) 1. My parents want me to know English.

2. They want me to repeat English words before I go to bed.

3. The don't want me to be lazy

4. I want you to meet my parents.

b) 1. I obsereved my father work on a computer.

2. I saw my mother bake cakes .

3. I saw an old woman enter the bus.

3.

1, 3, 4

4.

1) My hobby is drawing. My mother's hobbies are reading and knitting.

2) I'm sorry for interrupting you.

3) Kindly do it again

4) What should I visit in your town?

5.

1) It needs cleaning

2) It needs cutting

3) It needs washing

6.

1) He enjoys watching TV

2) We like to listen to classical music

3) I am fond of reading.

4) She is interested in learning languages.