Invertebrates living in the deep sea, at extreme depths, experience pressure how many times greater than the normal atmospheric pressure (in $times$)?

Scorpion, spiders, lizards, and rattlesnakes are inhabitants of:

Which of the following are the dominant plants of the cold desert?

The part of the earth where life exists is made up of:

If organisms are facing localized stressful conditions in their habitat for a period like winter,then they will . . . . . . to hospitable region.

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?