Answer:
1) ans-:Mountain breezes blow from mountain towords valley after sunset,when mountain cools down and valley zone is comparatively warmer. While valley breezes occur when the warm air rises up the sides of the valley.
Explanation:
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The river in question is the Rio Grande, forming a border between
Mexico and Texas. The explorer was Juan de Oñate. He lived from
<span>1550–1626. Juan was a conquistador and explorer,
and led expeditions to the Great Plains and Lower Colorado River. He was also a
colonial governor. </span>
The correct answer is: B. Global warming.
The construction activities have much increased problems at the permafrost regions recently. The main reason for that is the climate change, or rather the global warming. Because the temperatures have increased, the permafrost is melted for certain parts of the year, while on others is slowly disappearing. That causes lot of movement and adjustment in the landscape. The previously constructed infrastructure has been damaged, on some places totally ruined. The permafrost is not stable anymore, thus the previous methods of construction are not suitable, so there's a very big problem when something needs to be constructed in this regions nowadays.
If trees are nature's lungs, then the Amazon, being the biggest and least explored rain forest in the whole World, is the Earth's whole respiratory system. Trees use carbon dioxide and produce oxygen, which means they clean the air. If the Amazon is being ruined and no trees are replaced with new ones, and factories are being built instead, this means that humans contribute to air pollution, leading to disastrous consequences for the whole flora and fauna, climate change and altogether influencing humanity.
The correct answer is Tundra.