CBSE (Central Board of Secondary Education) Class-7 Science: Questions 193 - 199 of 322
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Question 193
Question MCQ▾
Pumping organ of the human transport system is:
Choices
Choice (4) | Response | |
---|---|---|
a. | Ventricles | |
b. | Auricles | |
c. | Heart | |
d. | None of the above |
Question 194
Question MCQ▾
Process of formation of soil is called as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Humus | |
b. | Weathering | |
c. | Bed Rocks | |
d. | None of the above |
Question 195
Question MCQ▾
Air expands on heating and helps to:
Choices
Choice (4) | Response | |
---|---|---|
a. | Feel cooler on a cloudy day | |
b. | Rise the hot air balloons up | |
c. | Both a. and b. are correct | |
d. | None of the above |
Question 196
Question MCQ▾
Plants reproduce by spore formation are:
Choices
Choice (4) | Response | |
---|---|---|
a. | Mosses | |
b. | Ferns | |
c. | Moulds | |
d. | All a., b. and c. are correct |
Question 197
Question MCQ▾
The process of fusion of male and female gametes to form a zygote is called as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Fragmentation | |
b. | Syngamy | |
c. | Fertilization | |
d. | None of the above |
Question 198
Question MCQ▾
Which type of vessels help in the transport of water from roots to the leaf?
Choices
Choice (4) | Response | |
---|---|---|
a. | Xylem vessels | |
b. | Phloem vessels | |
c. | All of the above | |
d. | None of the above |
Question 199
Question MCQ▾
Soil erosion takes place due to:
Choices
Choice (4) | Response | |
---|---|---|
a. | Deforestation | |
b. | Floods | |
c. | Overgrazing by cattle | |
d. | Question does not provide sufficient data or is vague |