Download App

Biodiversity, Conservation and Environmental Issues — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYBiodiversity, Conservation and Environmental Issues2 Marks
Question
Give reasons : Global warming is caused by ‘greenhouse effect’.
✓

Answer

  1. Carbon dioxide along with methane, nitrogen oxides and CFCs can absorb infrared radiations reflected from the earth’s surface.
  2. The blanket formed by these gases in the atmosphere traps the reflected infrared rays and produces heat on the earth’s surface which results in greenhouse effect.
  3. The greenhouse effect in turn causes global warming.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Answer the following questions." from Biodiversity, Conservation and Environmental Issues→Biodiversity, Conservation and Environmental Issues — all question types→BIOLOGY STD 12 Science question papers→Maharashtra Board STD 12 Science question papers→Maharashtra Board question paper generator→

Similar questions

What is census? Give India's population according to 1991 and 2001 census.
→
What do the microsporangia develop further into, asthe anther matures?
→
Primary productivity varies from ecosystem to ecosystem. Explain.
→
Name any two antibiotics with their microbial source.
→
AUG GAC CUG AUA UUU UGA is the base sequence in a strand of mRNA.
  1. Write the base sequence of the DNA strand from which it has been transcribed.
  2. Upon translation, how many amino acids will the resulting peptide have?
→
$\alpha-$thalassemia is different from $\beta-$thalassemia. Justify.
→
Arrange the following stages of human evolution in the order of their increasing cranial capacity:
(i) Homo sapiens
(ii) Neanderthal man
(iii) Australopithecus
(iv) Homo erectus
→
Complete the chart showing human proteins produced by rDNA technology to treat human diseases and re-write:
Disorders/diseases Recombinant proteins
? Erythrpoeitin
Asthma ?
? Tissue plasminogen activator
Emphysema ?
→
Sketch and label hair pin model of t-RNA.
→
Why is it essential that tRNA binds to both an amino acid and an mRNA codon during protein synthesis?
→