NSO Level 1- Science Olympiad (SOF) Class 10: Questions 248 - 252 of 986

Access detailed explanations (illustrated with images and videos) to 986 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.

Rs. 450.00 or

How to register?

Question number: 248

» Heredity and Evolution

Edit
MCQ▾

Question

Which is the not correct for Genetic drift?

Choices

Choice (4) Response

a.

Non-adaptive evolution

b.

Increase genetic variation

c.

Non-directional

d.

Random process

Question number: 249

» Periodic Classification of Elements

Edit
MCQ▾

Question

Which are the correct statements for carbon and silicon?

Statement 1: Both carbon and silicon easily sharing electrons with other elements

Statement 2: Silicon forms compounds such as Silene, disilicon hexahydride, silicon tetra fluoride

Statement 3: Carbon forms compounds such as methane, propane, butane, benzene and carbon dioxide

Choices

Choice (4) Response

a.

Statements 1 and 2 are correct

b.

Statements 2 and 3 are correct

c.

Statements 1,2 and 3 are correct

d.

Statements 1 and 3 are correct

Question number: 250

» Life Processes

Edit
MCQ▾

Question

Which is not part of the Forebrain?

Choices

Choice (4) Response

a.

Thalamus

b.

Tectum

c.

Hypothalamus

d.

Cerebrum

Question number: 251

» Electricity

Edit
MCQ▾

Question

Three resistances, each of , are joined in parallel. Three such combinations are put in series, and then the resultant resistance will be

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 252

» Heredity and Evolution

Edit
MCQ▾

Question

Which is incorrect regarding Hugo de vries?

Choices

Choice (4) Response

a.

Evolution was gradual

b.

Evolution resulted from mutation

c.

Mutations are random and directional

d.

Question does not provide sufficient data or is vague