Objective-type questions 2.
B. Fill in the blanks.
3
A sour fruit such as an orange or a lemon
in it.
contains a weak
4
acid is found in curd.
2.
3. Sulphuric acid and hydrochloric acid are
examples of
acids.
4. The amount of water in an acid gives us the
of the acid.
5. An
is a substance which is used to
tell whether a substance is acidic or basic.
6. A substance that does not change the colour
of an indicator is called
7. Two natural indicators which can be used
to detect basic substances are and
8. An ant bite contains
acid.​

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.

there is none because earth is stationary and flat.