Answer:
D. predator population will decrease
Explanation:
If the population of prey species decreases then the competition between the predator population will increase and natural selection will act on them. So nature will select those individuals among predators who are more fit and adapted and less fit individuals will die.
So a few year after the predator population will decrease as there are not enough prey to support the large population of predators which was present when prey were abundant. Therefore the correct answer is D.
Answer:
We can predict or comment about reactivity of elements by taking into consideration their electronic configuration that imparts stability or un-stability to an atom.
Explanation:
Reactivity : It refers to the affinity of a substance to combine with other substance .
Elements are mainly of two types :
In terms of metals or non metals it can be defined as tendency to loose or gain electrons .
- On the basis of it ,we can easily make out or comment about the reactivity of element (metal or non metal ) .Like ,if an element has completely filled outermost shell or we can say have stable electronic configuration then it is already stable .Therefore , it won't react with any other element .
- But, if its outer shell isn't complete then in order to attain stability it will combine or react with other .Hence , we can say it will be quite reactive .
Answer:
The most appropriate answer would be B. Have factories recycle water.
Recycling of water refers to the process which processed the waste water and convert it to reusable form.
It can be reused for various purposes:
- Agriculture: irrigating different types of crops, aquaculture etc
- Urban uses such as irrigating golf courses, public parks, private gardens, roadsides, cleaning of roads, systems involved in fire protection, washing of vehicles, toilet flushing, snow-making etc.
- Industrial uses: processes that involve water like cooling towers, washing, dust control etc.
- Environmental uses: It also helps in recharging the surface and ground water, marshes, wetlands, silviculture, wildlife habitat etc.
- Potable: Recharge aquifers ultimately leads to increase in quantity of drinking water.
Hence, having factories which recycle water helps in keeping the freshwater resources renewable.
They are absorbed by the amylase.
Answer:
The correct answer is orange.
Explanation:
Carotenoids are the accessory pigments generated by plants.Carotenoid belongs to terpinoid family of secondary metabolites.Many vegetables such as pumpkin,tomato, carrot have specific color combination only due to the presence of carotenoids.
Carotenoid is responsible for orange,yellow and red coloration of various vegetables such as pumpkin,carrot,tomato etc.
