Climate change greatly affects the community of whales and dolphins. Most of the species of whales live in a specific temperature range, because of the non-availability of their food, zoo plankton in warm waters. One of the most important organisms whales prey up on are zoo plankton, whose number declined greatly due to the warming of oceans. These whales migrate to Northern waters overcome the effects of increasing temperature and in search of food. So ,we can expect a disruption in the food chain as a result of the warm oceanic waters.
When two object occupy the same space or have the same volume, but one of them is heavier than the other. This means that the heavier object is having a higher mass which results in a higher density than the other (lighter) object.
Note that density is calculated using the following rule:
density = mass / volume
Answer: All of the parts of a series circuit-power source, wires, and devices-are connected along the same pathway, All of the parts of a series circuit-power source, wires, and devices-are connected along the same pathway. These two are correct.
Explanation:
Answer:
The correct option is C.
Explanation:
Nuclear and chemical reactions are two types of reactions that one usually encounter in chemistry. These two reactions differ from each other significantly. For instance, the nuclear reactions usually involve the nucleus of the involving atoms while chemical reactions has to do with the electrons that are located outside of the nucleus of the atoms. Also, it is only chemical reaction that are influenced by factors such as temperature, pressure, catalyst, etc. Such factors does not determine the rate of nuclear reactions.
Boron’s chemistry is not typical of its group. is group 3A (13) shows the increasing metallic character from Al to Tl.
All Boron compounds are covalent whereas the other elements in group 3A (13) form mostly ionic compounds.
Except for Boron, the other elements of group 3A (13) show increasing metallic character from Al to Tl. But Boron is a metalloid.
Compared to the other elements in group 3A, boron has a lower reactivity in chemical terms (13)
The metalloid boron (B), as well as the metals aluminium (Al), gallium (Ga), indium (In), and thallium, are all part of group 3A (or IIIA) of the periodic table (Tl). In contrast to the other members of Group 3A, the element borax primarily forms covalent connections.
To learn more about group 3A (13) refer the link:
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