LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

ECOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which has become the most significant source of environmental change on Earth?
A
Climate
B
Energy
C
Human activity
D
Conservation biology
Explanation: 

Detailed explanation-1: -Fossil fuels – coal, oil and gas – are by far the largest contributor to global climate change, accounting for over 75 per cent of global greenhouse gas emissions and nearly 90 per cent of all carbon dioxide emissions.

Detailed explanation-2: -On the surface, the greatest factor affecting Earth is sunlight. Sun provides energy for living organisms, and it drives our planet’s weather and climate by creating temperature gradients in the atmosphere and oceans.

Detailed explanation-3: -Climate change the greatest threat the world has ever faced, UN expert warns.

Detailed explanation-4: -Burning fossil fuels – Fossil fuels such as oil, gas, and coal contain carbon dioxide that has been ‘locked away’ in the ground for thousands of years. Deforestation – Forests remove and store carbon dioxide from the atmosphere. More items

There is 1 question to complete.