Question

b.
What is biosphere:
c.
Explain the term 'Sustainable Environment'.
d. Mention any three harmful effects of deforestation. (HOTS)
List out the different kinds of pollution other than noise and light pollution.
f. Give any three examples regarding the harmful impact of human modification of the
environment.
e.
B.
Fill in the blanks.
c.
a. The removal of vegetative cover leads to soil erosion.
b. The biological environment depends on the bhysical.... environment.
are an integral part of the environment besides plants, animals and micro-
organisms.
d. Adding harmful substances to land, water and air is called Pollution
is the term used for rise in global temperatures.
4. Distinguish between the following pairs.
a. Physical and biological environment.
e.
1122
A Cateway to Modern Social Studies-7​

Answer 1

• ᴛʜᴇ ʙɪᴏsᴘʜᴇʀᴇ, ᴀʟsᴏ ᴋɴᴏᴡɴ ᴀs ᴛʜᴇ ᴇᴄᴏsᴘʜᴇʀᴇ, ɪs ᴛʜᴇ ᴡᴏʀʟᴅᴡɪᴅᴇ sᴜᴍ ᴏғ ᴀʟʟ ᴇᴄᴏsʏsᴛᴇᴍs. ɪᴛ ᴄᴀɴ ᴀʟsᴏ ʙᴇ ᴛᴇʀᴍᴇᴅ ᴛʜᴇ ᴢᴏɴᴇ ᴏғ ʟɪғᴇ ᴏɴ ᴇᴀʀᴛʜ. ᴛʜᴇ ʙɪᴏsᴘʜᴇʀᴇ ɪs ᴠɪʀᴛᴜᴀʟʟʏ ᴀ ᴄʟᴏsᴇᴅ sʏsᴛᴇᴍ ᴡɪᴛʜ ʀᴇɢᴀʀᴅs ᴛᴏ ᴍᴀᴛᴛᴇʀ, ᴡɪᴛʜ ᴍɪɴɪᴍᴀʟ ɪɴᴘᴜᴛs ᴀɴᴅ ᴏᴜᴛᴘᴜᴛs.
• ᴇɴᴠɪʀᴏɴᴍᴇɴᴛᴀʟ sᴜsᴛᴀɪɴᴀʙɪʟɪᴛʏ ɪs ʀᴇsᴘᴏɴsɪʙʟʏ ɪɴᴛᴇʀᴀᴄᴛɪɴɢ ᴡɪᴛʜ ᴛʜᴇ ᴘʟᴀɴᴇᴛ ᴛᴏ ᴍᴀɪɴᴛᴀɪɴ ɴᴀᴛᴜʀᴀʟ ʀᴇsᴏᴜʀᴄᴇs ᴀɴᴅ ɴᴏᴛ ᴊᴇᴏᴘᴀʀᴅɪᴢᴇ ᴛʜᴇ ᴀʙɪʟɪᴛʏ ғᴏʀ ғᴜᴛᴜʀᴇ ɢᴇɴᴇʀᴀᴛɪᴏɴs ᴛᴏ ᴍᴇᴇᴛ ᴛʜᴇɪʀ ɴᴇᴇᴅs.
• ʙᴇsɪᴅᴇs ᴛʜᴇsᴇ 4 ᴛʏᴘᴇs ᴏғ ᴘᴏʟʟᴜᴛɪᴏɴ, ᴏᴛʜᴇʀ ᴛʏᴘᴇs ᴇxɪsᴛ sᴜᴄʜ ᴀs ʟɪɢʜᴛ ᴘᴏʟʟᴜᴛɪᴏɴ, ᴛʜᴇʀᴍᴀʟ ᴘᴏʟʟᴜᴛɪᴏɴ ᴀɴᴅ ʀᴀᴅɪᴏᴀᴄᴛɪᴠᴇ ᴘᴏʟʟᴜᴛɪᴏɴ.
• ᴄʟɪᴍᴀᴛᴇ ᴄʜᴀɴɢᴇ : ʜᴜᴍᴀɴ ᴀᴄᴛɪᴠɪᴛɪᴇs ʜᴀᴠᴇ ʀᴇsᴜʟᴛᴇᴅ ɪɴ ᴠᴀʀɪᴏᴜs ᴘʜᴇɴᴏᴍᴇɴᴀ ʟɪᴋᴇ ɢʟᴏʙᴀʟ ᴡᴀʀᴍɪɴɢ ᴀɴᴅ ᴍᴇʟᴛɪɴɢ ᴏғ ɢʟᴀᴄɪᴇʀs. ᴛʜɪs ɪs ʀᴇsᴜʟᴛɪɴɢ ɪɴ ᴀɴ ᴏᴠᴇʀᴀʟʟ ᴄʜᴀɴɢᴇ ɪɴ ᴛʜᴇ ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇ ᴀɴᴅ ᴄʟɪᴍᴀᴛᴇ ᴏғ ᴇᴀʀᴛʜ ᴀɴᴅ ɪᴛs ᴇɴᴠɪʀᴏɴᴍᴇɴᴛ. ʙ. ᴅᴇᴘʟᴇᴛɪᴏɴ ᴏғ ᴏᴢᴏɴᴇ ʟᴀʏᴇʀ: ᴠᴀʀɪᴏᴜs ᴄʜᴇᴍɪᴄᴀʟs ʟɪᴋᴇ ᴄʜʟᴏʀᴏғʟᴜᴏʀᴏᴄᴀʀʙᴏɴ ʀᴇsᴜʟᴛ ɪɴ ᴅᴇᴘʟᴇᴛɪᴏɴ ᴏғ ᴏᴢᴏɴᴇ ʟᴀʏᴇʀ.

ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ᴜʜ✌