For Downtown: A view of Water hyacinth and sewage discharge into the Madambakkam lake on Thursday.
| Photo Credit: Velankanni Raj_B/The Hindu
Q: Why are invasive species dangerous?
Invasive species are able to inflicting the extinction of native vegetation and animals, lowering biodiversity, competing with native organisms for restricted assets, and altering habitats.
lowering biodiversity
competing with native organisms for restricted assets
inflicting the extinction of native organisms
All of the above
A: 4
Q: What is the commonest attribute of an invasive species?
The most typical traits of invasive species are speedy replica and progress, excessive dispersal capacity, capacity to outlive on numerous meals sorts and in a variety of environmental circumstances and the power to adapt physiologically to new circumstances, referred to as phenotypic plasticity.
Anthocyanin
Assimilation
Phenotypic plasticity
Morphogenesis
A: 3
Q: This snail is likely one of the most typical invasive species present in India. It was delivered to India from Mauritius in 1847. What is it?
Brought to India by William Henry Benson in 1847, the Giant African Snail unfold by means of India very quickly. Mr Benson had introduced a pair from Mauritius for a good friend who later launched the snails in his backyard.
Garden snail
Giant African Snail
Mizoram apple snail
Common apple snail
A: 2
Q: Where are water hyacinths, some of the generally discovered invasive vegetation in India, initially from?
Water Hyacinths, a decorative aquatic plant from South America, have been launched to India throughout British colonial rule.
South America
South Africa
Cambodia
Australia
A: 1
Q: How are invasive vegetation stopped from spreading?
There are some ways to curb invasive species progress. Mechanical strategies contain chopping or pulling. Herbicides are used as chemical deterrents. Using plant ailments, predators and even suffocation are used to hinder their speedy progress.
Cutting, pulling
Herbicides
Using plant ailments or predator species
All of the above
A: 4
