Answer:
Letter A - True
Explanation:
Science is in fact limited to topics in which evidence can be gained through experiments and/or observations.
This happens because to realize science, scientists have to strictly follow the scientific method. And in this method, essential steps are observation, formulation of hypothesis and experimentation.
It is also important to note that not all knowledge can be covered by the scientific method, this does not mean that it is not valid, just that it is not science.
The answer is <span>Topoisomerase.
Topoisomerase is an enzyme responsible for twisting of DNA helix. After DNA strand is untwisted by helicase enzyme, DNA must be twisted again so the normal function of DNA can be sustained. If left untwisted, the replication fork will continue to grow, the normal function of DNA will stop.</span>
Because Spain held such a dominant presence in the America's, Portugal focused on Africa. The correct option among all the options given in the question is option "A". The Spanish empire back then was one of the largest empire among all the empires. They were the masters of exploring the world via sea route and so they had created colonies far before the other. In America the Spanish were already present and expanding when Portugal decided to look elsewhere for creating colonies.
Answer:
Improving drainage in the cities by ensuring that drainage channels are large enough to handle flood waters and that they are never blocked. Clogged drainages impede flow of water resulting to a rise in water levels in the city.
Ensure proper enforcement of laws that ensure that people do not settle on wetlands and riparian land. Wetlands are natural drainages for water and settling on them is akin to blocking drainages in a built environment.
Constructing flood gates and flood walls to redirect floodwaters away from populated areas. This is especially implemented in built environments that are in low-lying lands and prone to flooding.
