Answer:
Ever since "Observations throughout the world make it clear that climate change is occurring, and rigorous scientific research demonstrates that the greenhouse gases emitted by human activities are the primary driver." (2009)2
Explanation:
Closely spaced isobars are an indication of high pressure gradient and high winds.
- The answer to the question is a.
<h3>What are isobars?
</h3>
These are those lines that are used as an indication to show the areas that have the same atmospheric pressure.
The closely spaced ones shows that there are high winds.
Read more on isobars here:
brainly.com/question/8717936
As they grow, the sharks' favorite prey becomes sea mammals, especially sea lions and seals. ... Using their tails as propellers, they swim upward at a fast sprint, burst out of the water in a leap called a breach, and fall back into the water with the seal in their mouths
The frontiers when taken into consideration, maps which establishes the European frontiers were seen to appear from the 18th century only and not prior to that.
<u>Explanation:
</u>
The ideology of formation of state or state boundary were emerged with the period of 17th century and even mid of 16th century witnessed it. The establishment of frontier though started with 18th century only.
The different topographical features were considered to describe the fronts such as the rivers, mountains. And, even the landmarks such as forts or towers were considered as the border distinction.
