Question
The toxin produced by Bacillus thuringensis interferes
with which part of insect body?Solution
The toxin produced by Bt is lethal to several orders of insects, including Lepidoptera (butterflies, moths, and skippers), Diptera (flies), and Coleoptera (beetles). The cry proteins in the toxin bind to specific receptors on the membranes of mid-gut (epithelial) cells of the targeted pests, resulting in their rupture.
What is "eutrophication" primarily associated with?
What does "biodegradation" involve?
Which of the following statements about the Silent Valley Movement are correct?
1. It aimed to protect the Silent Valley region from a hydroelect...
Carbon footprint calculations typically include which of the following factors?
(A) The use of electricity and fossil fuelsÂ
(B) Recyclin...
Which of the following is correct related to the Forest (Conservation) Act, 1980?
(A) Was enacted to prevent deforestation
(B) Promotes th...
Consider the following statements (A) and (B).Â
 Statement (A) : Crows build nests on very low branches on a tree.Â
 Statement (B): ...
Match the following terms with their appropriate impact on the environment:
Which of the following are primary air pollutants?Â
(A) Ozone (O₃ ) (B) Sulfur dioxide (SO₂) (C) Peroxyacetyl nitrate (PAN) (D) Nitrogen dio...
Which are recognized renewable energy sources?
(A) Coal
(B) Solar energy
(C) Wind energy
(D) Natural gas
Choose the c...
In the anaerobic digestion method of waste management:
