Earth needs to find room for a substantial increase in the human population over the next century. A new model indicates that if current growth trends don't change dramaally, there will be around 4 billion extra people knocking around the planet by 2100.

Based on current models of growth, the human population will boom up to 9.7 billion in 2050 from its current figure of 7.3 billion. Even more shockingly, it will continue to expand to 11.2 billion by the end of the century if fertility rates do not drop. These findings were announced by John R. Wilmoth, director of the United Nations Population Division, at the 2015 Joint Statisal Meetings in Seattle.

The alarming findings were made using population models of demographic change from historical data. The resulting population estimates range between 9.5 and 13.3 billion people in 2100. This is the scenario that the world seriously faces if fertility rates continue at their current rate. The chief contributor to the population increase are regions in sub-Saharan Africa.

While only predictions, the statiss are important for policymakers to keep in mind when planning for the future. For example, the model predicts that the U.S. will be accommodating 1.5 million extra people each year until the end of the century. By 2100, the population will have increased by a third: This is an increase from 322 million civilians to 450 million. 

It is these sorts of findings that poliians should be paying attention to in order to better prepare nations for the increased number of people they will need to accommodate and feed. A major upheaval of policies regarding energy, health care, jobs and pensions will ly be required when the increase in population stresses national governments. Issues such as pollution management and crime will also ly become more complicated. 

Developing countries – such as China, Brazil and India – will possibly face some of the most drama social changes. Their populations are composed mostly of young people, and as their population ages and grows, the question will be whether there is support in place for this longer lifestyle.

trả lời 

Earth needs to find room for a substantial increase in the human population over the next century. A new model indicates that if current growth trends don't change dramaally, there will be around 4 billion extra people knocking around the planet by 2100.

Muốn chi tiết thì kham khảo bài của you Vũ Cao Minh ( Cool Teen )

hc tốt 

bn ơi 

vào đây nha : Bo suu tap 30 de thi va dap an hsg tieng anh lop 8

vào thống kê của mk đó 

hc tốt 

1. Sit down! A strange dog  is running to you.
2. My mom often buys meat from the butcher’s.
3. My brothers  aren’t drinking/are not drinking coffee at the moment.
4. Look! Those people  are climbing the mountain so fast.
5. That girl  is crying loudly in the party now.
6. These students always  wear warm clothes in summer.
7. What  are you doing in the kitchen?
8. I never  eat potatoes.
9. The 203 bus  sets off every fifteen minutes.

10.Tonight we  aren’t going/are not going to our teacher’s wedding party.

1.He's a little bi                   takative                      .He s to talk a lot.

2.She always has a          friendly                  smile with everyone.

3.Everyone is           kind                      to me.They often help me when I need.

4.It is            boring                     to sit on the plane with nothing to read.

5.She is very            creative                .She writes poetry and paints.

6.It's a really              funny                film;everyone laughs a lot.

7.Children are often            shy             of people they don't know.

8.He is often          hard-working                 at shool and he always gets good marks.

9.The teacher wants the students to feel             confident                  about asking questions when they don't understand.

10.I'm not very             clever                      at Math.I often make mistakes in calculations.

1.His story appears to be true.

2.A famous actress appear in a play at the local theater.

trả lời : appears

             appear

A:Hello

B:Hi

A:What your name

B:My name is B

A:Nice to meet you

B:Nice to meet you to0

A:Bye

B:Bye cmm

1.A. camping           B. recycle                C. vacuum             D. community

2 A. giant                B. target                  C. figure                D. garbage

3 A chemist              B. school                 C. chance                    D. chaos

4 A. frog                   B drag                       C page                 D mug

5 A. kite                     B cookie                       C hike              D knit

chắc ko 

1. My brother (sleep)often sleeps on the floor. (often)
2. He (stay)Does he sometimes stay up late? (sometimes)
3. I (do)always do the housework with my brother. (always)
4. Peter and Mary ( come)never come to class on time. (never)
5. Why Johnson (get)does Johnson always getgood marks? (always)
6. You (go)Do you usually go  shopping? (usually)
7. She (cry)seldom cries. (seldom)
8. My father (have)never has popcorn. (never)

Put the adverbs of frequency into the correct place . Then give the correct form of vebs :

1. My brother (sleep)often sleepson the floor. (often)
   
2. He (stay) Does...sometimes stay up late? (sometimes)
3. I (do) always do the housework with my brother. (always)
4. Peter and Mary ( come)never has to class on time. (never)

intelligent chứ cậu?

= thông minh nhé 

 intelligent : thông minh 

exhaust, calorie:khí thải, calo

học tốt

h minhf

Google dịch xin hân hạnh tài trợ câu hỏi này

Hobby is one of the most important things we should have in our lives. It is something that you enjoy doing, something that brings relief of the daily grind and allows you to relax. Of all hobbies in the world, I music the most. For me, music is the best hobby ever. You should look around and you can see that music is everywhere.

I enjoy music and I listen it every single day. There are a lot of different styles of music for you to choose and enjoy. If I am in good mood, I prefer to listen some energy rock music that keep me happy and full of power. If I am tired, I chose some calm, relaxing songs. Music can speak, through music people can express feelings and emotions. When you hear something that looks you, that you understand it easily, you start to love it. There are several different ways to enjoy music as your hobby. When you discover an artist or musician that you satisfies, it’s clear that you want to collect all of their works. Not only listening to music, a music collection is a great hobby to have, too.

Music is a hobby that has no boundaries. It makes the world smaller. Without music, life would be a mistake.

Học tốt :) 

Bài làm

My favorite activity in free time is listening to music, and it brings me a lot of emotions. Music helps me soothe the sadness and pressure, and I can harmonize with the melodies as well as the lyrics. When I am full with energy, I usually choose a rock or a hip hop song so I can dance freely to music. On the contrary, when I want to relax and be lazy, I choose a ballad song to make my mood become more comfortable. Listening to music helps me express my emotions and feelings, and music is a wonderful language which can connect different people with similar interests. Two strangers can become friends if they to listen to the same songs, share the same taste of music, or be passionate about a singer. I join a forum for music lovers, and it is a great place to make friends, share our favorite songs, and exchange international music information. Music can express many things that the words cannot, and I think my free time would be a lot more boring without music.

# Học tốt #