Answer:
A. The area from southern France to Mongolia changed to frozen tundra in winter and semiarid steppe in summer.
Explanation:
- The last glaciers period occurred at the end of the Permian period and took place about 115,000 11,700 years ago. And the appearance of the glacial and the interglacial periods and is referred to as the last ice age and the ice caps of the Sierra Nevada and Rocky mountains and the alps and the baltic peninsular and Patagonia ice sheets in the south.
Answer:
Explanation:
Catalytic converters are used as an exhaust emission control device and are used to remove toxic gases and products by catalyzing the redox reactions.
The Corporate Average Fuel Efficiency (CAFE) standards were set of rules enacted in the USA to increase the efficiency of fuel engines and hence to reduce the emission rates .
The ethanol as compared to the conventional gasoline emits 50 per cent or lesser greenhouse gases to the environment .
Answer:
Because of their wave movement, P waves travel through any kind of material, whether it is a solid, liquid or gas. On the other hand, S waves only move through solids and are stopped by liquids and gases. ... This also accounts why fewer S waves are recorded than P waves.
