Consider the following four statements $(1-4)$ about certain desert animals such as kangaroo rat.
$(1)$ They have dark colour and high rate of reproduction and excrete solid urine.
$(2)$ They do not drink water, breathe at a slow rate to conserve water and have their body covered with thick hairs.
$(3)$ They feed on dry seeds and do not require drinking water.
$(4)$ They excrete very concentrated urine and do not use water to regulate body temperature.
Which two of the above statements for such animals are true ?
$3$ and $1$
$1$ and $2$
$3$ and $4$
$2 $ and $3$
People who have migrated from the planes to an area adjoining Rohtang Pass about six months back
Thick cuticle, sunken and scotoactive stomata, $CAM$ photosynthesis and conversion of leaves into spines are some of the important characters of
Removal of soil by the action of wind and water is known as
Eurythermal animals and plants are those which
Choose correct pair :
$(1)$ Salt concentration in inland water - $30-35\%$
$(2)$ Salt concentration in the sea - $5\%$
$(3)$ Salt concentration in hypersalinelagoon - $>100\%$