9. Which of the following is a common characteristic of the given animals: dolphin, cat, horse?
a. They all lay eggs
b. They all give birth to their offspring
c. They all are oviparous
d. They all live on land
10. The protective covering developed by the caterpillar around itself is known as a/an:
a. Pupa
b. Egg
c. Cocoon
d. Larva
11. Clouds are formed in which layer of the atmosphere?
a. Exosphere
b. Mesosphere
c. Thermosphere
d. Troposphere
Answer (2)
In question 9, the correct answer is 'b,' they all give birth to their offspring. The cocoon is the answer to question 10, which is protective covering during the larva stage. Clouds are formed in the troposphere, answering question 11.
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Let's go through each of the questions one by one:
Which of the following is a common characteristic of the given animals: dolphin, cat, horse?
To determine the correct answer, let's consider the characteristics of these animals:
Dolphins , cats , and horses are all mammals.
Mammals are known for giving birth to live young rather than laying eggs, which means they are viviparous.
Therefore, the correct answer is b. They all give birth to their offspring.
The protective covering developed by the caterpillar around itself is known as a/an:
Caterpillars, in their lifecycle, eventually find a safe place to undergo transformation. This process is called metamorphosis.
During metamorphosis, the caterpillar forms a protective covering around itself known as a cocoon .
Thus, the correct answer is c. Cocoon.
Clouds are formed in which layer of the atmosphere?
Earth's atmosphere consists of several layers, each with different characteristics and functions.
Clouds primarily form in the troposphere , which is the lowest layer of Earth's atmosphere. It is where most of the weather processes occur, including cloud formation, because it contains the vast majority of the atmosphere’s moisture.
Therefore, the correct answer is d. Troposphere.
