CHAPTER ONE

Question 1

what is environment?

Answer 1

sum total of all living and non living elements and their effects towards human life

Question 2

biotic elements?

Answer 2

animals, plants, forests, fisheries and birds

Question 3

abiotic elements?

Answer 3

water, land, sunlight rocks and air

Question 4

climate?

Answer 4

state of the atmosphere over long time periods

Question 5

ecosystem?

Answer 5

community of living and non living things that work together.

Question 6

what causes climate change?

Answer 6

increase in the earths tempreture which comes from increased green house gases

Question 7

what are the green house gases?

Answer 7

carbon dioxide, methane, nitrous oxide, HFC,
and their are extra green houses gases coming from burning fossil fuels besides human activities such as cutting trees, raising live stock

Question 8

what are the indirect estimates of tempreture?

Answer 8

tree rings and ice cores

Question 9

what was the warmest 30 year period?

Answer 9

from 1989 to 2019 was the warmest more than 800 years

Question 10

effects of human activities?

Answer 10

1- observed patterns of surface warming
2- temperatures changes through the atmosphere
3- increase in ocean heat
4- increase in atmospheric moisture
5- sea levels rise and increased melting of ice

Question 11

weather vs climate

Answer 11

weather: current state of the atmosphere and is measurable in terms of temperature, pressure, humidity, wind speed. climate: state of the atmosphere over long peroid of time

Question 12

Rising global temperatures are leading to other changes around the world, such as:

Answer 12

1- stronger hurricanes
2- melting ice
3- wildlife habitat loss