Answer:
Green house effect and human activity.
Explanation:
-The green house effect: Some gases in the atmosphere trap the heat and doesn't allow it to scape making the Earth warmer.
-Human activity: The industrial activities have increased the carbon dioxic levels that have contributed to the higher temperatures. Also, deforestation, fluorinated gases and fertilisers containing nitrogen have contributed to climate change.
Answer:
a) w = 98°
b) x = 137°
Explanation:
The reason is that they are angles at a point
Which means they are equal to 360°.
Example;
a) 165° + 97° + w = 360°
262° + w = 360°
You then group like terms
w = 360° - 262°
w = 98°
Note: The reason is the same for b)
Answer:
A. technology can be used to overcome physical barriers and boundaries
Explanation:
The ability to dam water and use of improved transportation are clear proofs of how we can overcome physical barriers and boundaries.
- Dam water is an engineering revolution by which water can be made available all year round.
- Also, damage to the ecosystem caused by excess water is circumvented.
- Roads that are pliable are of huge important in breaching geographical imitations. A good transport system can make use of this connectivity.
- Air transportation has improved the ease of travel and reduced travel time greatly.
- Both dams and good transportation are clear engineering solutions to overcome limitations of nature.
